Updated on 2025/10/23

写真a

 
TEI Kokukei
 
Organization
Faculty of Environmental, Life, Natural Science and Technology Professor
Position
Professor
External link

Degree

  • Doctor of Engineering

Research Interests

  • 磁気共鳴

  • 超伝導

  • magnetic resonance

  • superconductivity

Research Areas

  • Natural Science / Magnetism, superconductivity and strongly correlated systems

Education

  • Osaka University    

    - 1990

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  • Osaka University   基礎工学研究科   物理系

    - 1990

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    Country： Japan

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  • Kobe University    

    - 1985

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  • Kobe University   理学部   物理

    - 1985

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    Country： Japan

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Professional Memberships

Committee Memberships

  • 日本物理学会   理事  

    2021.3 - 2025.3   

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    Committee type：Academic society

  • 日本物理学会   理事  

    2021.3 - 2023.3   

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    Committee type：Academic society

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Papers

  • Antiferromagnetic Spin Fluctuations and Unconventional Superconductivity in Topological Superconductor Candidate YPtBi Revealed by 195Pt-NMR Reviewed

    Y. Z. Zhou, J. Chen, Z. X. Li, J. Luo, J. Yang, Y. F. Guo, W. H. Wang, R. Zhou, Guo-qing Zheng

    Physical Review Letters   130 ( 26 )   2023.6

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

    DOI： 10.1103/physrevlett.130.266002

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.130.266002/fulltext

  • Superconducting Transition in Quasi-One-Dimensional Superconductor Cs2Cr3As3 Probed by DC Magnetic Susceptibility Reviewed

    Akihiko Sumiyama, Takumi Nagaeki, Akira Yamaguchi, Ke Jia, Jie Yang, Youguo Shi, Guo-qing Zheng

    Journal of the Physical Society of Japan   92 ( 1 )   015001(1) - 015001(2)   2023.1

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.92.015001

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  • Possible star-of-David pattern charge density wave with additional modulation in the kagome superconductor CsV3Sb5 Reviewed

    J. Luo, Z. Zhao, Y. Z. Zhou, J. Yang, A. F. Fang, H. T. Yang, H. J. Gao, R. Zhou, Guo-qing Zheng

    npj Quantum Materials   7 ( 1 )   3(1) - 30(9)   2022.3

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    AV3Sb5 (A = K, Rb, Cs) is a novel kagome superconductor coexisting with the charge density wave (CDW) order. Identifying the structure of the CDW order is crucial for understanding the exotic normal state and superconductivity in this system. Here, we report 51V nuclear magnetic resonance (NMR) and 121/123Sb nuclear quadrupole resonance (NQR) studies on kagome-metal CsV3Sb5. Below the CDW transition temperature TCDW ~ 98 K, an abrupt change of spectra was observed, indicating that the transition is of the first order. By further analyzing the spectra, we find that the CDW order is commensurate. And most remarkably, the obtained experimental results suggest that the charge modulation of the CDW order is of star-of-David pattern and accompanied by an additional charge modulation in bulk below T* ~ 40 K. Our results revealing the unconventional CDW order provide new insights into AV3Sb5.

    DOI： 10.1038/s41535-022-00437-7

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    Other Link： https://www.nature.com/articles/s41535-022-00437-7

  • Spin-triplet superconductivity in K 2 Cr 3 As 3 Reviewed

    Jie Yang, Jun Luo, Changjiang Yi, Youguo Shi, Yi Zhou, Guo-qing Zheng

    Science Advances   7 ( 52 )   eabl4432   2021.12

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Association for the Advancement of Science (AAAS)  

    DOI： 10.1126/sciadv.abl4432

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  • Spin-triplet superconductivity in K2Cr3As3 Reviewed International coauthorship

    7 ( 50 )   eabl4432   2021.12

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1126/sciadv.abl44

    DOI： 10.1126/sciadv.abl44

  • Antiferromagnetic spin fluctuations and superconductivity in NbRh2B2 and TaRh2B2 with a chiral crystal structure Reviewed

    Kazuaki Matano, Ryo Ogura, Mateo Fountaine , Harald O. Jeschke , Shinji Kawasaki, and Guo-qing Zheng

    PHYSICAL REVIEW B   104   22450(1) - 22450(8)   2021.12

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevB.104

  • Spontaneous Lattice Distortion in the Spin-Triplet Superconductor CuxBi2Se3 Reviewed

    K. Matano, S. Takayanagi, K. Ito, S. Nita, M. Yokoyama, M. Mihaescu, H. Nakao, Guo-qing Zheng

    Physical Review Letters   135 ( 8 )   086001(1) - 086001(6)   2025.8

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

    DOI： 10.1103/ddvn-8c9n

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/ddvn-8c9n/fulltext

  • Microscopic evidence for Fulde-Ferrel-Larkin-Ovchinnikov state and multiband effects in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>KFe</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> Reviewed

    X. Y. Liu, Z. Kao, J. Luo, J. Yang, A. F. Fang, J. Zhao, R. Zhou, Guo-qing Zheng

    Physical Review B   112 ( 2 )   L020505(1) - L020505(7)   2025.7

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    DOI： 10.1103/7hhv-9fq7

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/7hhv-9fq7/fulltext

  • Microscopic Evidence of Charge- and Spin-Density Waves in La3Ni2O7–δ Revealed by 139La-NQR Reviewed

    Jun Luo, Jie Feng, Gang Wang Ningning Wang, Jie Dou, Aifang Fang, Jie Yang, Jinguang Cheng, Guo-qing Zheng, Rui Zhou

    Chinese Physics Letters   42 ( 6 )   067402(1) - 067402(7)   2025.6

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    The recent discovery of superconductivity in La3Ni2O7–δ with a transition temperature T c close to 80 K at high pressures has attracted significant attention, due particularly to a possible density wave (DW) transition occurring near the superconducting dome. Identifying the type of DW order is crucial for understanding the origin of superconductivity in this system. However, owing to the presence of La4Ni3O10 and other intergrowth phases in La3Ni2O7–δ samples, extracting the intrinsic information from the La3Ni2O7 phase is challenging. In this study, we employed 139La nuclear quadrupole resonance (NQR) measurements to eliminate the influence of other structural phases in the sample and obtain microscopic insights into the DW transition in La3Ni2O7–δ . Below the DW transition temperature T DW ∼ 153 K, we observe a distinct splitting in the ±5/2 ↔ ±7/2 transition of the NQR resonance peak at the La(2) site, while only a line broadening is seen in the ±3/2 ↔ ±5/2 transition peak. Through further analysis of the spectra, we show that the line splitting is due to a unidirectional charge modulation. A magnetic line broadening is also observed below T DW, accompanied by a large enhancement of the spin-lattice relaxation rate, indicating the formation of magnetically ordered moments in the DW state. Our results suggest a simultaneous formation of charge- and spin-density wave orders in La3Ni2O7–δ , thereby offering critical insights into the electronic correlations in Ni-based superconductors.

    DOI： 10.1088/0256-307x/42/6/067402

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    Other Link： https://iopscience.iop.org/article/10.1088/0256-307X/42/6/067402/pdf

  • Fully-gapped superconductivity with rotational symmetry breaking in pressurized kagome metal CsV3Sb5 Reviewed

    X. Y. Feng, Z. Zhao, J. Luo, Y. Z. Zhou, J. Yang, A. F. Fang, H. T. Yang, H.-J. Gao, R. Zhou, Guo-qing Zheng

    Nature Communications   16 ( 1 )   3643(1) - 3643(8)   2025.4

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    Abstract

    The discovery of the kagome metal CsV3Sb5 has generated significant interest in its complex physical properties, particularly its superconducting behavior under different pressures, though its nature remains debated. Here, we performed low-temperature, high-pressure 121/123Sb nuclear quadrupole resonance (NQR) measurements to explore the superconducting pairing symmetry in CsV3Sb5. At ambient pressure, we found that the spin-lattice relaxation rate 1/T 1 exhibits a kink at T ~ 0.4 T c within the superconducting state and follows a T 3 variation as temperature further decreases. This suggests the presence of two superconducting gaps with line nodes in the smaller one. As pressure increases beyond P c ~ 1.85 GPa, where the charge-density wave phase is completely suppressed, 1/T 1 shows no Hebel-Slichter peak just below T c, and decreases rapidly, even faster than T 5, indicating that the gap is fully opened for pressures above P c. In this high pressure region, the angular dependence of the in-plane upper critical magnetic field H c2 breaks the C 6 rotational symmetry. We propose the s + i d pairing at P &gt; P c which explains both the 1/T 1 and H c2 behaviors. Our findings indicate that CsV3Sb5 is an unconventional superconductor and its superconducting state is even more exotic at high pressures.

    DOI： 10.1038/s41467-025-58941-w

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    Other Link： https://www.nature.com/articles/s41467-025-58941-w

  • Structural Analysis under Uniaxial Strain Using Synchrotron Radiation Reviewed

    Akito Kobayashi, Seiya Nita, Nao Tsukuda, Asuka Mine, Hayate Nishigaki, Musashi Yokoyama, Shogo Yoshida, Kazuaki Matano, Shinji Kawasaki, Kenji Ishii, Guo-qing Zheng

    12 ( 5 )   325 - 328   2024.10

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    Language：Japanese   Publishing type：Research paper (bulletin of university, research institution)  

    DOI： 10.18957/rr.12.5.325

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  • Strain-induced long-range charge-density wave order in the optimally doped Bi2Sr2−xLaxCuO6 superconductor Reviewed

    Shinji Kawasaki, Nao Tsukuda, Chengtian Lin, Guo-qing Zheng

    Nature Communications   15 ( 1 )   5082(1) - 5082(10)   2024.6

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    The mechanism of high-temperature superconductivity in copper oxides (cuprate) remains elusive, with the pseudogap phase considered a potential factor. Recent attention has focused on a long-range symmetry-broken charge-density wave (CDW) order in the underdoped regime, induced by strong magnetic fields. Here by 63,65Cu-nuclear magnetic resonance, we report the discovery of a long-range CDW order in the optimally doped Bi2Sr2−xLaxCuO6 superconductor, induced by in-plane strain exceeding ∣ε∣ = 0.15 %, which deliberately breaks the crystal symmetry of the CuO2 plane. We find that compressive/tensile strains reduce superconductivity but enhance CDW, leaving superconductivity to coexist with CDW. The findings show that a long-range CDW order is an underlying hidden order in the pseudogap state, not limited to the underdoped regime, becoming apparent under strain. Our result sheds light on the intertwining of various orders in the cuprates.

    DOI： 10.1038/s41467-024-49225-w

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    Other Link： https://www.nature.com/articles/s41467-024-49225-w

  • High temperature spin-triplet topological superconductivity in K2Cr3As3 Invited Reviewed

    Guo-qing Zheng

    Journal of Physics: Conference Series   2545 ( 1 )   012001(1) - 012001(7)   2023.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：IOP Publishing  

    Abstract

    Spin-triplet superconductors are novel materials capable of harboring Majorana bound states that can be used in topological quantum computing. However, such bulk materials are still rare. Here we review the results that established K2Cr3As3 as a spin-triplet superconductor with transition temperature Tc as high as 6.5 K. We focus on the multiple-phases feature, and its exquisite distance to a ferromagnetic quantum critical point which is likely responsible for the high Tc. We touch on the topological aspects of the superconducting state, and suggest that it is a new route to the technical implementation using a topological spin-triplet superconductor at the highest temperature ever.

    DOI： 10.1088/1742-6596/2545/1/012001

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    Other Link： https://iopscience.iop.org/article/10.1088/1742-6596/2545/1/012001/pdf

  • Single Crystal Growth of and Hyperfine Couplings in the Spin-Triplet Superconductor K2Cr3As3 Reviewed

    Seigo Ogawa, Tomoki Miyoshi, Kazuaki Matano, Shinji Kawasaki, Yoshihiko Inada, Guo-qing Zheng

    Journal of the Physical Society of Japan   92 ( 6 )   2023.6

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    Authorship：Last author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Physical Society of Japan  

    DOI： 10.7566/jpsj.92.064711

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  • Commensurate-to-incommensurate transition of charge-density-wave order and a possible quantum critical point in pressurized kagome metal CsV3Sb5 Reviewed

    X. Y. Feng, Z. Zhao, J. Luo, J. Yang, A. F. Fang, H. T. Yang, H. J. Gao, R. Zhou, Guo-qing Zheng

    npj Quantum Materials   8 ( 1 )   2023.5

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    Abstract

    Clarifying the interplay between charge-density waves (CDWs) and superconductivity is important in the kagome metal CsV3Sb5, and pressure (P) can play a crucial role. Here, we present 121/123Sb nuclear quadrupole resonance (NQR) measurements under hydrostatic pressures up to 2.43 GPa in CsV3Sb5 single crystals. We demonstrate that the CDW gradually changes from a commensurate modulation with a star-of-David (SoD) pattern to an incommensurate one with a superimposed SoD and Tri-hexagonal (TrH) pattern stacking along the c-axis. Moreover, the linewidth δν of 121/123Sb-NQR spectra increases with cooling down to TCDW, indicating the appearance of a short-range CDW order due to CDW fluctuations pinned by quenched disorders. The δν shows a Curie–Weiss temperature dependence and tends to diverge at Pc ~ 1.9 GPa, suggesting that a CDW quantum critical point (QCP) exists at Pc where Tc shows the maximum. For P &gt; Pc, spin fluctuations are enhanced when the CDW is suppressed. Our results suggest that the maximal Tc at Pc ~ 1.9 GPa is related to the CDW QCP, and the presence of spin fluctuations prevents the Tc from a rapid decrease otherwise, after the CDW is completely suppressed.

    DOI： 10.1038/s41535-023-00555-w

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    Other Link： https://www.nature.com/articles/s41535-023-00555-w

  • Manipulating the nematic director by magnetic fields in the spin-triplet superconducting state of CuxBi2Se3 Reviewed

    M. Yokoyama, H. Nishigaki, S. Ogawa, S. Nita, H. Shiokawa, K. Matano, Guo-qing Zheng

    Physical Review B   107 ( 10 )   2023.3

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

    DOI： 10.1103/physrevb.107.l100505

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.107.L100505/fulltext

  • Orbital diamagnetism and low-energy excitations in a Weyl semimetal Invited Reviewed

    Solid State Physics   58 ( 1 )   31 - 38   2023.1

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  • Antiferromagnetic spin fluctuations and superconductivity in NbRh2B2 and TaRh2B2 with a chiral crystal structure Reviewed

    Kazuaki Matano, Ryo Ogura, Mateo Fountaine, Harald O. Jeschke, Shinji Kawasaki, Guo-qing Zheng

    Physical Review B   104 ( 22 )   224508(1) - 224508(8)   2021.12

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society (APS)  

    DOI： 10.1103/physrevb.104.224508

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.104.224508/fulltext

  • Charge Order and Fluctuations in Bi2Sr2−xLaxCuO6+δ Revealed by 63,65Cu-Nuclear Magnetic Resonance Invited Reviewed

    Shinji Kawasaki, Madoka Ito, Dai Kamijima, Chengtian Lin, Guo-qing Zheng

    Journal of the Physical Society of Japan   90   111008(1) - 111008(11)   2021.8

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  • Transport signatures of the pseudogap critical point in the cuprate superconductor Bi2Sr2−xLaxCuO6+δ Reviewed

    M. Lizaire, A. Legros, A. Gourgout, S. Benhabib, S. Badoux, F. Laliberté, M.-E. Boulanger, A. Ataei, G. Grissonnanche, D. LeBoeuf, S. Licciardello, S. Wiedmann, S. Ono, H. Raffy, S. Kawasaki, G.-Q. Zheng, N. Doiron-Leyraud, C. Proust, L. Taillefer

    PHYSICAL REVIEW B   104   014515(1) - 014515(11)   2021.7

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  • Normal state specific heat in the cuprate superconductors La2-xSrxCuO4 and Bi2+ySr2-x-yLaxCuO6+δ near the critical point of the pseudogap phase Reviewed

    C. Girod, D. Leboeuf, A. Demuer, G. Seyfarth, S. Imajo, K. Kindo, Y. Kohama, M. Lizaire, A. Legros, A. Gourgout, H. Takagi, T. Kurosawa, M. Oda, N. Momono, J. Chang, S. Ono, G. Q. Zheng, C. Marcenat, L. Taillefer, T. Klein

    Physical Review B   103 ( 21 )   2021.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevB.103.214506

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  • Microscopic evidence for an intra-unit-cell electronic nematicity inside the pseudogap phase in YBa2Cu4O8 Reviewed

    W. Wang, J. Luo, C. G. Wang, J. Yang, Y. Kodama, R. Zhou, Guo-qing Zheng

    SCIENCE CHINA Physics, Mechanics & Astronomy   63 ( 3 )   237413   2021.1

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  • Nodal superconducting gap in LiFeP revealed by NMR: Contrast with LiFeAs Reviewed

    A F Fang, R Zhou, H Tukada, J Yang, Z Deng, X C Wang, C Q Jin, Guo-Qing Zheng

    Chin. Phys. B   30   047403   2021.1

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  • Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh0.5Ir0.5In5 Reviewed

    Shinji Kawasaki, Toshihide Oka, Akira Sorime, Yuji Kogame, Kazuhiro Uemoto, Kazuaki Matano, Jing Guo, Shu Cai, Liling Sun, John L. Sarrao, Joe D. Thompson, Guo-qing Zheng

    COMMUNICATIONS PHYSICS   3 ( 1 )   2020.8

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1038/s42005-020-00418-x

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  • Landau diamagnetism and Weyl-fermion excitations in TaAs revealed by As75 NMR and NQR Reviewed

    C. G. Wang, Yoshiaki Honjo, L. X. Zhao, G. F. Chen, K. Matano, R. Zhou, Guo-qing Zheng

    Physical Review B   101 ( 24 )   2020.6

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/physrevb.101.241110

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.101.241110/fulltext

  • NMR and NQR studies on transition-metal arsenide superconductors LaRu2As2, KCa2Fe4As4F2, and A(2)Cr(3)As(3) Reviewed

    Jun Luo, Chunguang Wang, Zhicheng Wang, Qi Guo, Jie Yang, Rui Zhou, K. Matano, T. Oguchi, Zhian Ren, Guanghan Cao, Guo-Qing Zheng

    CHINESE PHYSICS B   29 ( 6 )   2020.6

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1674-1056/ab892d

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  • Direction and symmetry transition of the vector order parameter in topological superconductors CuxBi2Se3 Reviewed

    T. Kawai, C. G. Wang, Y. Kandori, Y. Honoki, K. Matano, T. Kambe, Guo-qing Zheng

    Nature Communications   11 ( 1 )   235   2020.1

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1038/s41467-019-14126-w

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  • Tuning the Distance to a Possible Ferromagnetic Quantum Critical Point in A2Cr3As3 Reviewed

    J. Luo, J. Yang, R. Zhou, Q. G. Mu, T. Liu, Z.-a. Ren, C. J. Yi, Y. G. Shi, Guo-qing Zheng

    Phys. Rev. Lett.   123   047001(1) - 047001(6)   2019.7

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  • NMR studies on noncentrosymmetric superconductor TaRh2B2

    Ogura Ryo, Matano Kazuaki, Kawasaki Shinji, Zheng Guo-qing

    Meeting Abstracts of the Physical Society of Japan   74.2   1987 - 1987   2019

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    Language：Japanese   Publisher：The Physical Society of Japan  

    DOI： 10.11316/jpsgaiyo.74.2.0_1987

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  • Single Crystal Growth and Characterization of CuxBi2Se3 II

    Kandori Y., Kawai T., Honoki Y., Matano K., Kambe T., Zheng G. -q.

    Meeting Abstracts of the Physical Society of Japan   74.2   1074 - 1074   2019

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    Language：Japanese   Publisher：The Physical Society of Japan  

    DOI： 10.11316/jpsgaiyo.74.2.0_1074

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  • Structural phase transition, antiferromagnetism and two superconducting domes in LaFeAsO1-xFx (0 < x ≤ 0.75) Reviewed

    Jie Yang, Toshihide Oka, Zheng Li, HuaiXin Yang, JianQi Li, GenFu Chen, Guo-Qing Zheng

    Science China Physics, Mechanics & Astronomy   61 ( 11 )   2018.11

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    Authorship：Corresponding author   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s11433-018-9240-0

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    Other Link： http://link.springer.com/article/10.1007/s11433-018-9240-0/fulltext.html

  • 銅酸化物高温超伝導体における擬ギャップと磁場誘起電荷密度波―Bi2Sr2－x Lax CuO6＋δの場合― Invited Reviewed

    川崎 慎司, 鄭 国慶

    日本物理学会誌   73 ( 8 )   558 - 563   2018.8

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  • Electron Mass Enhancement near a Nematic Quantum Critical Point in NaFe1–xCoxAs Reviewed

    C. G. Wang, Z. Li, J. Yang, L. Y. Xing, G. Y. Dai, X. C. Wang, C. Q. Jin, R. Zhou, Guo-qing Zheng

    Phys. Rev. Lett.   121   167004   2018.6

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  • Fully gapped spin-singlet superconductivity in noncentrosymmetricPbTaSe2:Pb207nuclear magnetic resonance study Reviewed

    S. Maeda, K. Matano, Guo-qing Zheng

    Physical Review B   97 ( 18 )   184510   2018.5

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/physrevb.97.184510

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    Other Link： http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.97.184510/fulltext

  • Nuclear magnetic resonance measurement station in SECUF using hybrid superconducting magnets Reviewed

    Zheng Li, Guo-qing Zheng

    Chin. Phys. B   27 ( 7 )   077401   2018

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  • Structural phase transition, precursory electronic anomaly, and strong-coupling superconductivity in quasi-skutterudite (Sr1−xCax)3Ir4Sn13 and Ca3Rh4Sn13 Reviewed

    Jun Luo, Jie Yang, S Maeda, Zheng Li, Guo-Qing Zheng

    Chin. Phys. B   27   077401   2018

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  • Observation of dopant sites in Cu-doped Bi2Se3 topological superconductor by Circularly-Polarized-Light Two-Dimensional Photoelectron Diffraction

    Ogi Masafumi, Hashimoto Yusuke, Momono Hiroki, Fukami Shun, Kobayashi Shinta, Peng Dawei, MATANO Kazuaki, Matsuda Hiroyuki, Taguchi Munetaka, Zheng Guo-qing, Daimon Hiroshi

    Abstract of annual meeting of the Surface Science of Japan   2018   298   2018

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    Language：Japanese   Publisher：The Japan Society of Vacuum and Surface Science  

    DOI： 10.14886/sssj2008.2018.0_298

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  • Single crystal growth of CuxBi2Se3

    Kawai T., Honoki Y., Kandori Y., Matano K., Kambe T., Zheng G. -q.

    Meeting Abstracts of the Physical Society of Japan   73.1   1332 - 1332   2018

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    Language：Japanese   Publisher：The Physical Society of Japan  

    DOI： 10.11316/jpsgaiyo.73.1.0_1332

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  • Charge-density-wave order takes over antiferromagnetism in Bi2Sr2−x La x CuO6 superconductors Reviewed

    S. Kawasaki, Z. Li, M. Kitahashi, C. T. Lin, P. L. Kuhns, A. P. Reyes, Guo-qing Zheng

    Nature Communications   8 ( 1 )   1267   2017.12

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  • Spin-singlet superconductivity in the doped topological crystalline insulator Sn0.96In0.04Te

    Satoki Maeda, Ryohei Hirose, Kazuaki Matano, Mario Novak, Yoichi Ando, Guo-qing Zheng

    PHYSICAL REVIEW B   96 ( 10 )   359 - 384   2017.9

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    DOI： 10.1103/PhysRevB.96.104502

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  • Gapped Spin-1/2 Spinon Excitations in a New Kagome Quantum Spin Liquid Compound Cu3Zn(OH)(6)FBr

    Zili Feng, Zheng Li, Xin Meng, Wei Yi, Yuan Wei, Jun Zhang, Yan-Cheng Wang, Wei Jiang, Zheng Liu, Shiyan Li, Feng Liu, Jianlin Luo, Shiliang Li, Guo-qing Zheng, Zi Yang Meng, Jia-Wei Mei, Youguo Shi

    CHINESE PHYSICS LETTERS   34 ( 7 )   301 - 308   2017.6

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  • Systemic Study of Orbital and Spin Nematicity in NaFe1-xCoxAs by NMR

    Rui Zhou, Guo-qing Zheng

    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM   30 ( 4 )   857 - 863   2017.4

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  • Quasi-localized Impurity State in Doped Topological Crystalline Insulator Sn0.9In0.1Te Probed by Te-125-NMR

    Satoki Maeda, Shota Katsube, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   86 ( 2 )   242 - 249   2017.2

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    DOI： 10.7566/JPSJ.86.024702

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  • Full-gap superconductivity in noncentrosymmetric Re6Zr, Re27Zr5, and Re24Zr5

    K. Matano, R. Yatagai, S. Maeda, Guo-qing Zheng

    PHYSICAL REVIEW B   94 ( 21 )   2016.12

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    DOI： 10.1103/PhysRevB.94.214513

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  • Charge fluctuations and nodeless superconductivity in quasi-one-dimensional Ta4Pd3Te16 revealed by Te-125-NMR and (181)nTa-NQR

    Z. Li, W. H. Jiao, G. H. Cao, Guo-qing Zheng

    PHYSICAL REVIEW B   94 ( 17 )   2016.11

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    DOI： 10.1103/PhysRevB.94.174511

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  • New superconductivity dome in LaFeAsO1-xFx far away from magnetism and accompanied by structural transition

    J. Yang, Guo-qing Zheng

    HYPERFINE INTERACTIONS   237 ( 1 )   2016.10

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    DOI： 10.1007/s10751-016-1355-9

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  • Spin-rotation symmetry breaking in the superconducting state of CuxBi2Se3

    K. Matano, M. Kriener, K. Segawa, Y. Ando, Guo-qing Zheng

    NATURE PHYSICS   12 ( 9 )   852 - 854   2016.9

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    DOI： 10.1038/NPHYS3781

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  • Orbital order and spin nematicity in the tetragonal phase of the electron-doped iron pnictides NaFe1-xCoxAs

    R. Zhou, L. Y. Xing, X. C. Wang, C. Q. Jin, Guo-qing Zheng

    PHYSICAL REVIEW B   93 ( 6 )   060502(1)-060502(6)   2016.2

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    DOI： 10.1103/PhysRevB.93.060502

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  • 19aBN-9 NMR/NQR studies of the non-centrosymmetric superconductor

    Yatagai R., Mori H., Maeda S., Matano K., Zheng G.-q.

    Meeting Abstracts of the Physical Society of Japan   71   1985 - 1985   2016

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    DOI： 10.11316/jpsgaiyo.71.1.0_1985

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  • 20pBM-2 Magnetic field induced CDW in the pseudogap state of Bi2201 superconductor revealed by Cu-NMR

    Kitahashi M., Kawasaki S., Lin Chengtian T., Zheng Guo-qing

    Meeting Abstracts of the Physical Society of Japan   71   2071 - 2071   2016

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    DOI： 10.11316/jpsgaiyo.71.1.0_2071

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  • Doping-enhanced antiferromagnetism in Ca1-xLaxFeAs2 Reviewed

    Shinji Kawasaki, Tomosuke Mabuchi, Satoki Maeda, Tomoki Adachi, Tasuku Mizukami, Kazutaka Kudo, Minoru Nohara, Guo-Qing Zheng

    Physical Review B - Condensed Matter and Materials Physics   92 ( 18 )   2015.11

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    DOI： 10.1103/PhysRevB.92.180508

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  • Doping-enhanced antiferromagnetism in Ca1-xLaxFeAs2

    Shinji Kawasaki, Tomosuke Mabuchi, Satoki Maeda, Tomoki Adachi, Tasuku Mizukami, Kazutaka Kudo, Minoru Nohara, Guo-qing Zheng

    PHYSICAL REVIEW B   92 ( 18 )   180508(1)-180508(4)   2015.11

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    DOI： 10.1103/PhysRevB.92.180508

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  • New Superconductivity Dome in LaFeAsO1-xFx Accompanied by Structural Transition

    Yang Jie, Zhou Rui, Wei Lin-Lin, Yang Huai-Xin, Li Jian-Qi, Zhao Zhong-Xian, Zheng Guo-Qing

    CHINESE PHYSICS LETTERS   32 ( 10 )   107401(1)-107401(7)   2015.10

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    DOI： 10.1088/0256-307X/32/10/107401

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  • Ferromagnetic Spin Fluctuation and Unconventional Superconductivity in Rb2Cr3As3 Revealed by As-75 NMR and NQR

    J. Yang, Z. T. Tang, G. H. Cao, Guo-qing Zheng

    PHYSICAL REVIEW LETTERS   115 ( 14 )   147002(1)-147002(5)   2015.9

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    DOI： 10.1103/PhysRevLett.115.147002

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  • Superconductivity and the electronic phase diagram of LaPt2-xGe2+x Reviewed

    S. Maeda, K. Matano, R. Yatagai, T. Oguchi, Guo-Qing Zheng

    Physical Review B - Condensed Matter and Materials Physics   91 ( 17 )   2015.5

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    DOI： 10.1103/PhysRevB.91.174516

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  • Superconductivity and the electronic phase diagram of LaPt2-xGe2+x

    S. Maeda, K. Matano, R. Yatagai, T. Oguchi, Guo-qing Zheng

    PHYSICAL REVIEW B   91 ( 17 )   174516(1)-174516(7)   2015.5

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    DOI： 10.1103/PhysRevB.91.174516

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  • Coexistence of multiple charge-density waves and superconductivity in SrPt2As2 revealed by As-75-NMR/NQR and Pt-195-NMR

    Shinji Kawasaki, Yoshihiko Tani, Tomosuke Mabuchi, Kazutaka Kudo, Yoshihiro Nishikubo, Daisuke Mitsuoka, Minoru Nohara, Guo-Qing Zheng

    PHYSICAL REVIEW B   91 ( 6 )   060510(1)-060510(5)   2015.2

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    DOI： 10.1103/PhysRevB.91.060510

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  • 16pCD-3 Coexistence of multiple charge-density waves and superconductivity in SrPt_2As_2 revealed by ^<75>As-NMR/NQR and ^<195>Pt-NMR

    Kawasaki S., Tani Y., Mabuchi T., Kudo K., Nishikubo Y., Mitsuoka D., Nohara M., Zheng Guo-qing

    Meeting Abstracts of the Physical Society of Japan   70   1704 - 1704   2015

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    DOI： 10.11316/jpsgaiyo.70.2.0_1704

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  • 21pBA-3 NMR study of Sr_2VFeAsO_3

    Ueshima K., Han F., Zhu X., Wen Hai-Hu, Kawasaki S., Zheng Guo-qing

    Meeting Abstracts of the Physical Society of Japan   70   1989 - 1989   2015

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    DOI： 10.11316/jpsgaiyo.70.1.0_1989

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  • 22aBA-5 NMR/NQR study of Ca_<1-x>La_xFeAs_2

    Mabuchi T., Kawasaki S., Mizukami T., Kudo K., Nohara M., Zheng G. -q.

    Meeting Abstracts of the Physical Society of Japan   70   2059 - 2059   2015

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    DOI： 10.11316/jpsgaiyo.70.1.0_2059

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  • 22pBC-10 NMR/NQR study of the structural phase transition in the superconductors LaPt_<2-x>Ge_<2+x>

    Maeda S., Matano K., Yatagai R., Oguchi T., Zheng Guo-qing

    Meeting Abstracts of the Physical Society of Japan   70   2244 - 2244   2015

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    DOI： 10.11316/jpsgaiyo.70.1.0_2244

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  • 24pDC-5 Cu-NMR study of pseudogap state of copper oxide superconductors Bi_2Sr_<2-x>La_xCuO_<6+δ>

    Kitahashi M., Kawasaki S., Lin C.T., Zheng Guo-qing

    Meeting Abstracts of the Physical Society of Japan   70   2485 - 2485   2015

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    DOI： 10.11316/jpsgaiyo.70.1.0_2485

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  • Magnetism and superconductivity in Sr2VFeAsO3 revealed by As-75- and V-51-NMR under elevated pressures

    Keiji Ueshima, Fei Han, Xiyu Zhu, Hai-Hu Wen, Shinji Kawasaki, Guo-qing Zheng

    PHYSICAL REVIEW B   89 ( 18 )   184506-1-184506-6   2014.5

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    DOI： 10.1103/PhysRevB.89.184506

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  • Spin-singlet superconductivity with a full gap in locally noncentrosymmetric SrPtAs

    K. Matano, K. Arima, S. Maeda, Y. Nishikubo, K. Kudo, M. Nohara, Guo-qing Zheng

    PHYSICAL REVIEW B   89 ( 14 )   140504(R)-1-140504(R)-4   2014.4

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    DOI： 10.1103/PhysRevB.89.140504

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  • Influence on superconductivity in the parity mixing superconductor Li2T3B(T:Pt,Pd) by non-magnetic impurity and defect doping

    G. Bao, Y. Inada, G. Eguchi, Y. Maeno, M. Ichioka, G. -Q. Zheng

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   494   95 - 98   2013.11

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    DOI： 10.1016/j.physc.2013.04.059

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  • 溶液酸素NMRによる酸化修飾タンパク質の新規検出方法 Reviewed

    藤原 範子, 花島 慎弥, 山口 芳樹, 鄭 国慶, 鳥越 秀峰, 谷口 直之, 鈴木 敬一郎

    日本生化学会大会プログラム・講演要旨集   86回   1P - 104   2013.9

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  • Quantum criticality in electron-doped BaFe2-xNixAs2

    R. Zhou, Z. Li, J. Yang, D. L. Sun, C. T. Lin, Guo-qing Zheng

    NATURE COMMUNICATIONS   4   2265-1-2265-7   2013.8

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    DOI： 10.1038/ncomms3265

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  • NMR and NQR Studies on Non-centrosymmetric Superconductors Re7B3, LaBiPt, and BiPd

    Kazuaki Matano, Satoki Maeda, Hiroki Sawaoka, Yuji Muro, Toshiro Takabatake, Bhanu Joshi, Srinivasan Ramakrishnan, Kenji Kawashima, Jun Akimitsu, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   82 ( 8 )   84711-1-84711-5   2013.8

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    DOI： 10.7566/JPSJ.82.084711

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  • Superconductivity in Tetragonal LaPt2-xGe2+x

    Satoki Maeda, Kazuaki Matano, Hiroki Sawaoka, Yoshihiko Inada, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   82 ( 6 )   65002-1-65002-2   2013.6

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    DOI： 10.7566/JPSJ.82.065002

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  • Phonon anomaly and anisotropic superconducting gap in noncentrosymmetric Li-2(Pd1-xPtx)(3)B

    G. Eguchi, D. C. Peets, M. Kriener, S. Yonezawa, G. Bao, S. Harada, Y. Inada, G. -q. Zheng, Y. Maeno

    PHYSICAL REVIEW B   87 ( 16 )   161203(R)-1-161203(R)-4   2013.4

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    DOI： 10.1103/PhysRevB.87.161203

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  • The Mott State and Superconductivity in Face-Centred Cubic Structured Cs3C60: A Cs-133-Nuclear Magnetic Resonance Study under Pressure

    Shinji Kawasaki, Junji Fukui, Takeshi Motoyama, Yuta Suzuki, Seiji Shibasaki, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   82 ( 1 )   14709-1-14719-6   2013.1

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    DOI： 10.7566/JPSJ.82.014709

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  • A solution O-17-NMR approach for observing an oxidized cysteine residue in Cu,Zn-superoxide dismutase

    Shinya Hanashima, Noriko Fujiwara, Kana Matsumoto, Noriyuki Iwasaki, Guo-qing Zheng, Hidetaka Torigoe, Keiichiro Suzuki, Naoyuki Taniguchi, Yoshiki Yamaguchi

    CHEMICAL COMMUNICATIONS   49 ( 14 )   1449 - 1451   2013

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    DOI： 10.1039/c2cc36918d

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  • NMR study of the impurity effects in noncentrosymmetric superconductors Li-2(Pd,Pt)(3)B Reviewed

    K. Arima, K. Matano, S. Harada, G. Z. Bao, Y. Inada, G. Q. Zheng

    10th International Conference on Materials and Mechanisms of Superconductivity (M2S-X)   449   012034-1 - 012034-3   2013

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    DOI： 10.1088/1742-6596/449/1/012034

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  • Microscopic coexistence of antiferromagnetism and superconductivity in hole-doped Iron-pnictides Ba0.77K0.23Fe2As2 revealed by NMR Reviewed

    R. Zhou, Z. Li, J. Yang, G. Q. Zheng

    Hyperfine Interactions   222 ( 1-3 )   95 - 102   2013

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    DOI： 10.1007/s10751-013-0862-1

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  • Microscopic coexistence of antiferromagnetic order and superconductivity in Ba0.77K0.23Fe2As2 Reviewed

    Z. Li, R. Zhou, Y. Liu, D. L. Sun, J. Yang, C. T. Lin, Guo-qing Zheng

    PHYSICAL REVIEW B   86 ( 18 )   2012.11

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    DOI： 10.1103/PhysRevB.86.180501

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  • Pseudogap Ground State and Its Doping Evolution in Bi2Sr2-xLaxCuO6+delta: Removing the Superconducting State by the Application of Very High Magnetic Fields Reviewed

    Guo-qing Zheng, S. Kawasaki, C. T. Lin, P. L. Kuhns, A. P. Reyes

    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM   25 ( 5 )   1249 - 1253   2012.7

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    DOI： 10.1007/s10948-012-1575-4

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  • MULTIPLE SUPERCONDUCTING GAPS, ANISOTROPIC SPIN FLUCTUATIONS AND SPIN-ORBIT COUPLING IN IRON-PNICTIDES Reviewed

    Jie Yang, Guo-Qing Zheng

    MODERN PHYSICS LETTERS B   26 ( 15 )   2012.6

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    DOI： 10.1142/S0217984912300086

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  • Luttinger-volume violating Fermi liquid in the pseudogap phase of the cuprate superconductors Reviewed

    Jia-Wei Mei, Shinji Kawasaki, Guo-Qing Zheng, Zheng-Yu Weng, Xiao-Gang Wen

    PHYSICAL REVIEW B   85 ( 13 )   134519   2012.4

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    DOI： 10.1103/PhysRevB.85.134519

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  • Antiferromagnetic Spin Fluctuations above the Dome-Shaped and Full-Gap Superconducting States of LaFeAsO1-xFx Revealed by As-75-Nuclear Quadrupole Resonance Reviewed

    T. Oka, Z. Li, S. Kawasaki, G. F. Chen, N. L. Wang, Guo-qing Zheng

    PHYSICAL REVIEW LETTERS   108 ( 4 )   047001-1-047001-5   2012.1

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    DOI： 10.1103/PhysRevLett.108.047001

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  • Cu-NMR Study of Bi2Sr1.6La0.4CuO6+delta Superconductor in Very High Magnetic Fields Reviewed

    S. Kawasaki, C. T. Lin, P. L. Kuhns, A. P. Reyes, Guo-qing Zheng

    26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5   400   2012

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    DOI： 10.1088/1742-6596/400/2/022052

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  • Non-magnetic impurity and defect doping in superconductors Li2Pd3B with noncentrosymmetric crystal structures Reviewed

    G. Bao, Y. Inada, S. Harada, G-q Zheng

    INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2011)   391   2012

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    DOI： 10.1088/1742-6596/391/1/012084

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  • Spin-orbit coupling, anisotropic magnetic fluctuations and nodeless energy gap in iron-pnictides revealed by NMR Reviewed

    Z. Li, J. Yang, Guo-qing Zheng

    26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5   400   2012

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    DOI： 10.1088/1742-6596/400/2/022145

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  • Magnetic phase diagram of Li-2(Pd1-xPtx)(3)B by ac susceptometry

    D. C. Peets, G. Eguchi, M. Kriener, S. Harada, Sk. Md. Shamsuzzamen, Y. Inada, G. -Q. Zheng, Y. Maeno

    PHYSICAL REVIEW B   84 ( 5 )   054521-1-054521-5   2011.8

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    DOI： 10.1103/PhysRevB.84.054521

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  • As-NMR/NQR study of CaFe2As2 under pressure Reviewed

    Shinji Kawasaki, Toshihide Oka, Takahisa Tabuchi, X. F. Wang, X. H. Chen, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   80   2011.7

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  • Multiple superconducting gap and anisotropic spin fluctuations in iron arsenides: Comparison with nickel analog

    Z. Li, S. Kawasaki, T. Oka, T. Tabuchi, Y. Ooe, M. Ichioka, Z. A. Ren, Z. X. Zhao, J. L. Luo, N. L. Wang, X. C. Wang, Q. Q. Liu, C. Q. Jin, C. T. Lin, Guo-qing Zheng

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   72 ( 5 )   492 - 496   2011.5

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    DOI： 10.1016/j.jpcs.2010.10.038

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  • As-NMR/NQR study of pressure-induced superconductivity in CaFe2As2

    S. Kawasaki, T. Oka, T. Tabuchi, X. F. Wang, X. H. Chen, Guo-qing Zheng

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   72 ( 5 )   501 - 504   2011.5

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    DOI： 10.1016/j.jpcs.2010.10.010

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  • As-NQR study of superconductivity in LaRAsO1-xFx (R=Fe and Ni)

    T. Oka, T. Tabuchi, Z. Li, S. Kawasaki, G. F. Chen, J. L. Luo, N. L. Wang, Guo-qing Zheng

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   72 ( 5 )   497 - 500   2011.5

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    DOI： 10.1016/j.jpcs.2010.10.022

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  • Nodeless energy gaps of single-crystalline Ba0.68K0.32Fe2As2 as seen via As-75 NMR

    Z. Li, D. L. Sun, C. T. Lin, Y. H. Su, J. P. Hu, Guo-qing Zheng

    PHYSICAL REVIEW B   83 ( 14 )   140506(R)-1-140506(R)-4   2011.4

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    DOI： 10.1103/PhysRevB.83.140506

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  • Carrier-Concentration Dependence of the Pseudogap Ground State of Superconducting Bi(2)Sr2-xLaxCuO6+delta Revealed by Cu-63,Cu-65-Nuclear Magnetic Resonance in Very High Magnetic Fields

    Shinji Kawasaki, Chengtian Lin, Philip L. Kuhns, Arneil P. Reyes, Guo-qing Zheng

    PHYSICAL REVIEW LETTERS   105 ( 13 )   2010.9

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    DOI： 10.1103/PhysRevLett.105.137002

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  • As-75 NQR and NMR Studies of Superconductivity and Electron Correlations in Iron Arsenide LiFeAs

    Zheng Li, Yosuke Ooe, Xian-Cheng Wang, Qing-Qing Liu, Chang-Qing Jin, Masanori Ichioka, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   79 ( 8 )   2010.8

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    DOI： 10.1143/JPSJ.79.083702

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  • Multiple Superconducting Gaps and Anisotropic Spin Fluctuations in Hole-Doped and Electron-Doped Iron-Pnictides: NMR Studies

    Guo-qing Zheng, K. Matano, S. Kawasaki, Z. Li, G. L. Sun, D. L. Sun, C. T. Lin, G. F. Chen, J. L. Luo, N. L. Wang, Z. A. Ren, Z. X. Zhao

    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM   23 ( 5 )   609 - 612   2010.7

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    DOI： 10.1007/s10948-010-0749-1

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  • Pressure-induced unconventional superconductivity near a quantum critical point in CaFe2As2

    S. Kawasaki, T. Tabuchi, X. F. Wang, X. H. Chen, Guo-qing Zheng

    SUPERCONDUCTOR SCIENCE & TECHNOLOGY   23 ( 5 )   054004-1-054004-6   2010.5

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  • Evidence for a full energy gap in the nickel pnictide superconductor LaNiAsO1-xFx from As-75 nuclear quadrupole resonance

    T. Tabuchi, Z. Li, T. Oka, G. F. Chen, S. Kawasaki, J. L. Luo, N. L. Wang, Guo-qing Zheng

    PHYSICAL REVIEW B   81 ( 14 )   2010.4

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  • 59Co NMR at pulsed high magnetic fields Reviewed

    Guo-Qing Zheng, K. Katayama, M. Kandatsu, N. Nishihagi, S. Kimura, M. Hagiwara, K. Kindo

    J. Low. Temp. Phys.   159   280   2010.1

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  • As-75 NMR studies of superconducting Ba0.72K0.28Fe2As2 Reviewed

    Z. Li, K. Matano, D. L. Sun, G. L. Sun, C. T. Lin, M. Ichioka, G. -Q. Zheng

    Physica C: Superconductivity and its Applications   470   S495 - S496   2009.12

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    DOI： 10.1016/j.physc.2009.11.174

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  • Spin-Echo NMR in Pulsed High Magnetic Fields up to 48 T

    Guo-qing Zheng, Kouta Katayama, Masahide Nishiyama, Shinji Kawasaki, Naoki Nishihagi, Shojiro Kimura, Masayuki Hagiwara, Koichi Kindo

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   78 ( 9 )   095001-1-095001-2   2009.9

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  • Superconducting state in the noncentrosymmetric Mg9.3Ir19B16.7 and Mg10.5Ir19B17.1 revealed by NMR

    K. Tahara, Z. Li, H. X. Yang, J. L. Luo, S. Kawasaki, Guo-qing Zheng

    PHYSICAL REVIEW B   80 ( 6 )   060503-1-060503-4   2009.8

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    DOI： 10.1103/PhysRevB.80.060503

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  • Anisotropic spin fluctuations and multiple superconducting gaps in hole-doped Ba0.72K0.28Fe2As2: NMR in a single crystal

    K. Matano, Z. Li, G. L. Sun, D. L. Sun, C. T. Lin, M. Ichioka, Guo-Qing Zheng

    EPL   87 ( 2 )   27012-1-27012-5   2009.7

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    DOI： 10.1209/0295-5075/87/27012

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  • Measurement of electron correlations in LixCoO2 (x=0.0-0.35) using Co-59 nuclear magnetic resonance and nuclear quadrupole resonance techniques

    S. Kawasaki, T. Motohashi, K. Shimada, T. Ono, R. Kanno, M. Karppinen, H. Yamauchi, Guo-qing Zheng

    PHYSICAL REVIEW B   79 ( 22 )   220514-1-220514-4   2009.6

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    DOI： 10.1103/PhysRevB.79.220514

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  • Superconducting Gap and Valence Band of Mg10Ir19B16 Studied by Laser and Synchrotron Photoemission Spectroscopy Reviewed

    Yoshida Rikiya, Okazaki Hiroyuki, Iwai Keisuke, Noami Kengo, Muro Takayuki, Okawa Mario, Ishizaka Kyoko, Shin Shik, Li Zheng, Luo Jianlin, Zheng Guo-qing, Oguchi Tamio, Hirai Masaaki, Muraoka Yuji, Yokoya Takayoshi

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   78 ( 3 )   34705 - 034705-4   2009.3

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  • Bulk-sensitive spectroscopic studies on noncentrosymmetric superconducting system of Mg–Ir–B Reviewed

    R. Yoshida, H. Okazaki, K. Iwai, K. Noami, T. Muro, M. Okawa, K. Ishizaka, S. Shin, Z. Li, J.L. Luo, G.-Q. Zheng, T. Oguchi, M. Hirai, Y. Muraoka, T. Yokoya

    Physica C-Superconductivity and Its Applications   469   1034 - 1036   2009

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    DOI： 10.1016/j.physc.2009.05.175

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  • Two superconducting gaps in LaFeAsO0.92F0.08 revealed by As-75 nuclear quadrupole resonance

    S. Kawasaki, K. Shimada, G. F. Chen, J. L. Luo, N. L. Wang, Guo-qing Zheng

    PHYSICAL REVIEW B   78 ( 22 )   220506-1-220506-4   2008.12

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    DOI： 10.1103/PhysRevB.78.220506

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  • Hydration-induced anisotropic spin fluctuations in NaxCoO2 center dot 1.3H(2)O superconductor

    K. Matano, C. T. Lin, Guo-qing Zheng

    EPL   84 ( 5 )   57010-1-57010-5   2008.12

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    DOI： 10.1209/0295-5075/84/57010

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  • (123)Sb-NQR study of unconventional superconductivity in the filled skutterudite heavy-fermion compound PrOs(4)Sb(12) under high pressure up to 3.82 GPa

    S. Kawasaki, K. Katayama, H. Sugawara, D. Kikuch, H. Sato, Guo-qing Zheng

    PHYSICAL REVIEW B   78 ( 6 )   064510-1-064510-7   2008.8

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    DOI： 10.1103/PhysRevB.78.064510

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  • P-31-NMR study in single crystal SmRu4P12 Reviewed

    Satoru Masaki, Takeshi Mito, Shinji Wada, Hitoshi Sugawara, Daisuke Kikuchi, Hideyuki Sato, Masashi Takigawa, Naoya Takeda, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   77   206 - 208   2008.1

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    DOI： 10.1143/JPSJS.77SA.206

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  • Spin-singlet superconductivity with multiple gaps in PrFeAsO0.89F0.11

    K. Matano, Z. A. Ren, X. L. Dong, L. L. Sun, Z. X. Zhao, Guo-Qing Zheng

    EPL   83 ( 5 )   57001-1-57001-4   2008

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    DOI： 10.1209/0295-5075/83/57001

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  • NQR investigation on multipolar ordering systems Reviewed

    T. Mito, S. Tomisawa, S. Masaki, M. Takemura, S.Wada, H. Harima, Y. Kato, M. Kosaka, D. Kikuchi, H. Sato, H. Sugawara, N. Takeda, G.-q. Zheng

    Physica   403 ( 5-9 )   1633 - 1635   2008

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    DOI： 10.1016/j.physb.2007.10.206

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  • Ru-NQR studies on filled skutterudite compounds RRu4P12 (R= La, Nd, Sm) Reviewed

    S. Masaki, T. Mito, M.Takemura, S. Wada, H. Harima, D. Kikuchi, H. Sato, H. Sugawara, N. Takeda, G.-q. Zheng

    Physica   403 ( 5-9 )   1630 - 1632   2008

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    DOI： 10.1016/j.physb.2007.10.205

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  • Evidence for d-wave pairing in the cobalt oxide superconductor NaxCoO2 center dot 1.3H(2)O Reviewed

    K. Matano, Guo-Qing Zheng, D. P. Chen, C. T. Lin

    Physica B: Condensed Matter   403   1107 - 1108   2007.11

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    DOI： 10.1016/j.physb.2007.10.251

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  • Pressure dependence of the superconducting transition and electron correlations in NaxCoO2 center dot 1.3H(2)O

    E. Kusano, S. Kawasaki, K. Matano, Guo-Qing Zheng, R. L. Meng, J. Cmaidalka, C. W. Chu

    PHYSICAL REVIEW B   76 ( 10 )   100506(R)(1)-100506(R)(4)   2007.9

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  • Elliptical hole pockets in the Fermi surfaces of unhydrated and hydrated sodium cobalt oxides

    J. Laverock, S. B. Dugdale, J. A. Duffy, J. Wooldridge, G. Balakrishnan, M. R. Lees, G.-Q. Zheng, D. Chen, C. T. Lin, A. Andrejczuk, M. Itou, Y. Sakurai

    PHYSICAL REVIEW B   76 ( 5 )   052509(1)-052509(4)   2007.8

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  • Observation of symmetry lowering associated with the metal-insulator transition in SmRu4P12 by Ru-101-NQR

    Satoru Masaki, Takeshi Mito, Masayuki Takemura, Shinji Wada, Hisatomo Harima, Daisuke Kikuchi, Hideyuki Sato, Hitoshi Sugawara, Naoya Takeda, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   76 ( 4 )   043714 (1)-043714 (4)   2007.4

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  • Magnetic-field induced ferromagnetism as the origin for the colossal magneto-resistance in La1.2Sr1.8Mn2O7

    Y. Shiotani, J. S. Gardner, J. L. Sarrao, Guo-qing Zheng

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   310 ( 2 )   E661 - E663   2007.3

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    DOI： 10.1016/j.jmmm.2006.10.914

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  • NMR study of the successive two phase transitions in SmRu4P12

    Masaki Satoru, Mito Takeshi, Shinji Wada, Naoya Takeda, Daisuke Kikuchi, Hideyuki Sato, Hitoshi Sugawara, Guo-qing Zheng

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   310 ( 2 )   E175 - E177   2007.3

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    DOI： 10.1016/j.jmmm.2006.10.128

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  • Novel superconductivity at the magnetic critical point in heavy-fermion systems: a systematic study of NQR under pressure Invited Reviewed

    Y. Kitaoka, S. Kawasaki, Y. Kawasaki, T. Mito, G-q Zheng

    JOURNAL OF PHYSICS-CONDENSED MATTER   19 ( 12 )   125202-1-125202-18   2007.3

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    DOI： 10.1088/0953-8984/19/12/125202

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  • Evidence for point nodes in the superconducting gap function in the filled skutterudite heavy-fermion compound PrOs4Sb12 : Sb-123-NQR study under pressure

    Kouta Katayama, Shinji Kawasaki, Masahide Nishiyama, Hitoshi Sugawara, Daisuke Kikuchi, Hideyuki Sato, Guo-qing Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   76 ( 2 )   023701 (1)-023701(4)   2007.2

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  • Spin triplet superconducting state due to broken inversion symmetry in Li2Pt3B

    M. Nishiyama, Y. Inada, Guo-qing Zheng

    PHYSICAL REVIEW LETTERS   98 ( 4 )   047002(1) - 047002(4)   2007.1

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    DOI： 10.1103/PhysRevLett.98.047002

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  • NMR and NQR studies of the pairing symmetry in the superconducting state of NaxCoO2 center dot 1.3H(2)O Reviewed

    K. Matano, G.-Q. Zheng, D. P. Chen, C. T. Lin, J. Cmaidalka, R. L. Meng, W. Chu

    Journal of Magnetism and Magnetic Materials   310 ( 2 )   687 - 689   2006.11

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    DOI： 10.1016/j.jmmm.2006.10.531

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  • Spin singlet pairing in the superconducting state of NaxCoO2 center dot 1.3H(2)O: Evidence from a Co-59 Knight shift in a single crystal

    Guo-qing Zheng, Kazuaki Matano, D. P. Chen, C. T. Lin

    PHYSICAL REVIEW B   73 ( 18 )   2006.5

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    DOI： 10.1103/PhysRevB.73.180503

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  • Evidence for nodes in the superconducting energy gap of the skutterudite compound PrOS4Sb12

    M. Nishiyama, T. Kato, H. Sugawara, D. Kikuchi, H. Sato, H. Harima, G. -Q. Zheng

    PHYSICA B-CONDENSED MATTER   378-80   192 - 193   2006.5

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    DOI： 10.1016/j.physb.2006.01.072

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  • Evolution of the physical properties with Na content in the cobalt oxide superconductors NaxCoO2 center dot 1.3H(2)O

    K Matano, GQ Zheng, J Cmaidalka, Y Sun, RL Meng, CW Chu

    PHYSICA B-CONDENSED MATTER   378-80   871 - 872   2006.5

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    DOI： 10.1016/j.physb.2006.01.480

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  • NMR study of unique properties in SmRu4P12

    T Mito, S Masaki, N Oki, S Noguchi, S Wada, N Takeda, D Kikuchi, H Sato, H Sugawara, GQ Zheng

    PHYSICA B-CONDENSED MATTER   378-80   224 - 225   2006.5

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    DOI： 10.1016/j.physb.2006.01.083

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  • Field-induced ferromagnetic order and colossal magnetoresistance in La1.2Sr1.8Mn2O7: A La-139 NMR study

    Y Shiotani, JL Sarrao, GQ Zheng

    PHYSICAL REVIEW LETTERS   96 ( 5 )   2006.2

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    DOI： 10.1103/PhysRevLett.96.057203

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  • Na content dependence of superconductivity and the spin correlations in NaxCoO2 center dot 1 center dot 3H(2)O

    GQ Zheng, K Matano, RL Meng, J Cmaidalka, CW Chu

    JOURNAL OF PHYSICS-CONDENSED MATTER   18 ( 5 )   L63 - L70   2006.2

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    DOI： 10.1088/0953-8984/18/5/L02

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  • In-115-NQR study of antiferromagnetism and superconductivity in CeRhIn5 and CeIn3 under pressure

    S Kawasaki, M Yashima, H Kotegawa, T Mito, Y Kawasaki, GQ Zheng, Y Kitaoka, H Shishido, S Araki, D Aoki, Y Haga, R Settai, Y Onuki

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   67 ( 1-3 )   497 - 499   2006.1

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    DOI： 10.1016/j.jpcs.2005.10.043

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  • Impurity effect as a probe for the gap function in the filled skutterudite compound superconductor PrOs4Sb12: Sb-NQR study

    M Nishiyama, T Kato, H Sugawara, D Kikuchi, H Sato, H Harima, GQ Zheng

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   74 ( 7 )   1938 - 1941   2005.7

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    DOI： 10.1143/JPSJ.74.1938

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  • Novel phase transition near the quantum critical point in the filled-skutterudite compound CeOs4Sb12: An Sb-NQR study

    M Yogi, H Kotegawa, GQ Zhang, Y Kitaoka, S Ohsaki, H Sugawara, H Sato

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   74 ( 7 )   1950 - 1953   2005.7

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    DOI： 10.1143/JPSJ.74.1950

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  • Superconductivity of the ternary boride Li2Pd3B probed by B-11 NMR

    M Nishiyama, Y Inada, GQ Zheng

    PHYSICAL REVIEW B   71 ( 22 )   2005.6

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    DOI： 10.1103/PhysRevB.71.220505

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  • Unconventional superconductivity near the antiferromagnetic criticality in CeCoIn5 : a study of In-115-NQR under pressure

    M Yashima, S Kawasaki, Y Kawasaki, GQ Zheng, Y Kitaoka, H Shishido, R Settai, Y Haga, Y Onuki

    PHYSICA B-CONDENSED MATTER   359   404 - 406   2005.4

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    DOI： 10.1016/j.physb.2005.01.080

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  • Sb-121-NMR studies of single-crystal PrOs4Sb12

    H Tou, M Doi, M Sera, M Yogi, Y Kitaoka, H Kotegawa, GQ Zheng, H Harima, H Sugawara, H Sato

    PHYSICA B-CONDENSED MATTER   359   892 - 894   2005.4

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    DOI： 10.1016/j.physb.2005.01.254

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  • In-115-NQR study of antiferromagnetism and superconductivity near magnetic criticality in CeIn3

    S Kawasaki, T Mito, Y Kawasaki, H Kotegawa, GQ Zheng, Y Kitaoka, H Shishido, S Araki, R Settai, Y Onuki

    PHYSICA B-CONDENSED MATTER   359   413 - 415   2005.4

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    DOI： 10.1016/j.physb.2005.01.083

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  • Evidence for the microscopic coexistence of superconductivity and ferromagnetism in UGe2 : Ge-73-NMR/NQR study Reviewed

    A Harada, H Kotegawa, Y Kawasaki, GQ Zheng, Y Kitaoka, E Yamamoto, Y Haga, Y Onuki, K Itoh, EE Haller

    PHYSICA B-CONDENSED MATTER   359   1057 - 1059   2005.4

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    DOI： 10.1016/j.physb.2005.01.283

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  • The phase diagram of antiferromagnetism and superconductivity in CeRhIn5: a study of In-115 NQR under pressure

    S Kawasaki, M Yashima, T Mito, Y Kawasaki, GQ Zheng, Y Kitaoka, D Aoki, Y Haga, Y Onuki

    JOURNAL OF PHYSICS-CONDENSED MATTER   17 ( 11 )   S889 - S893   2005.3

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    DOI： 10.1088/0953-8984/17/11/019

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  • Critical point and the nature of the pseudogap of single-layered copper-oxide Bi2Sr2-xLaxCuO6+delta superconductors

    GQ Zheng, PL Kuhns, AP Reyes, B Liang, CT Lin

    PHYSICAL REVIEW LETTERS   94 ( 4 )   2005.2

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    DOI： 10.1103/PhysRevLett.94.047006

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  • Magnetic criticality and unconventional superconductivity in CeCoIn5: Study of (115)in-nuclear quadrupole resonance under pressure

    M Yashima, S Kawasaki, Y Kawasaki, GQ Zheng, Y Kitaoka, H Shishido, R Settai, Y Haga, Y Onuki

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   73 ( 8 )   2073 - 2076   2004.8

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    DOI： 10.1143/JPSJ.73.2073

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  • Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high-T-c cuprate Reviewed

    H Kotegawa, Y Kitaoka, Y Araki, Y Tokunaga, GQ Zheng, K Tokiwa, T Watanabe, A Iyo, H Kito, Y Tanaka, H Ihara

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   408   761 - 763   2004.8

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    DOI： 10.1016/j.physc.2004.03.081

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  • New superconducting and magnetic phases emerge on the magnetic criticality in CeIn3

    S Kawasaki, T Mito, Y Kawasaki, H Kotegawa, GQ Zheng, Y Kitaoka, H Shishido, S Araki, R Settai, Y Onuki

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   73 ( 7 )   1647 - 1650   2004.7

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    DOI： 10.1143/JPSJ.73.1647

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  • Coexistence of antiferromagnetic order and unconventional superconductivity in heavy-fermion CeRh1-xIrxIn5 compounds: Nuclear quadrupole resonance studies Reviewed

    GQ Zheng, N Yamaguchi, H Kan, Y Kitaoka, JL Sarrao, PG Pagliuso, NO Moreno, JD Thompson

    PHYSICAL REVIEW B   70 ( 1 )   2004.7

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    DOI： 10.1103/PhysRevB.70.014511

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  • Coexistence of antiferromagnetic order and unconventional superconductivity in heavy-fermion CeRh1-xIrxIn5 compounds: Nuclear quadrupole resonance studies Reviewed

    Guo-Qing Zheng, N. Yamaguchi, H. Kan, Y. Kitaoka, J. L. Sarrao, P. G. Pagliuso, N. O. Moreno, J. D. Thompson

    Physical Review B - Condensed Matter and Materials Physics   70 ( 1 )   1 - 14511   2004.7

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    DOI： 10.1103/PhysRevB.70.014511

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  • Macroscopically inhomogeneous state at the boundary between the superconducting, antiferromagnetic, and metallic phases in quasi-one-dimensional (TMTSF)(2)PF6

    AV Kornilov, VM Pudalov, Y Kitaoka, K Ishida, GQ Zheng, T Mito, JS Qualls

    PHYSICAL REVIEW B   69 ( 22 )   2004.6

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    DOI： 10.1103/PhysRevB.69.224404

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  • Macroscopically inhomogeneous state at the boundary between the superconducting, antiferromagnetic, and metallic phases in quasi-one-dimensional (TMTSF)2PF6 Reviewed

    A. V. Kornilov, V. M. Pudalov, Y. Kitaoka, K. Ishida, G. Q. Zheng, T. Mito, J. S. Qualls

    Physical Review B - Condensed Matter and Materials Physics   69 ( 22 )   1 - 224404   2004.6

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    DOI： 10.1103/PhysRevB.69.224404

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  • Magnetism and superconductivity near the quantum criticality in CeRhIn5: In-115-NQR study under pressure

    S. Kawasaki, T. Mito, Y. Kawasaki, G. -q. Zheng, Y. Kitaoka, D. Aoki, Y. Haga, Y. Onuki

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   272   E19 - E20   2004.5

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    DOI： 10.1016/j.jmmm.2003.11.122

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  • Sb-NQR study of the "Kondo semiconductor'' CeOs4Sb12 Reviewed

    M. Yogi, H. Kotegawa, G. -q. Zheng, Y. Kitaoka, S. Osaki, H. Sugawara, H. Sato

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   272   E45 - E46   2004.5

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    DOI： 10.1016/j.jmmm.2003.12.448

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  • Exotic superconductivity in the coexistent phase of antiferromagnetism and superconductivity in CeCu2(Si0.98Ge0.02)(2): A Cu-NQR study under hydrostatic pressure

    Y Kawasaki, KJ Ishida, SJ Kawasaki, T Mito, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   73 ( 1 )   194 - 197   2004.1

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    DOI： 10.1143/JPSJ.73.194

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  • Unconventional superconductivity and electron correlations in the cobalt oxyhydrate Na0.35CoO2 center dot yH(2)O from nuclear quadrupole resonance

    T Fujimoto, GQ Zheng, Y Kitaoka, RL Meng, J Cmaidalka, CW Chu

    PHYSICAL REVIEW LETTERS   92 ( 4 )   2004.1

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    DOI： 10.1103/PhysRevLett.92.047004

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  • Coexistence of Unconventional Superconductivity and Antiferromagnetic order in the heavy Fermion Compounds Ce(Rh1-xIrx)In5:NQR Studies.

    G.-q. Zheng, N. Yamaguchi, K. Tanabe, Y. Kitaoka, J.L. Sarrao, J.D Thompson

    Phys. Rev. B   2004

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  • Coexistence of superconductivity and antiferromagnetism in multilayered high-Tc superconducto HgBa2Ca4Cu5Oy: Cu-NMR study

    H. Kotegawa, Y. Tokunaga, Y. Araki, G. -q. Zheng, Y. Kitaoka, K. Tokiwa, K. Ito, T. Watanabe, A. Iyo, Y. Tanaka, H. Ihara

    Phys Rev. B   2004

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  • d-wave superconductivity develops out of the Fermi liquid ground state in electron-doped superconductor Pr0.91Ce0.09LaCuO4-y Reviewed

    G. -q. Zheng, T. Sato, Y. Kitaoka, M. Fujita, K. Yamada

    Physica C   408-410   319 - 320   2004

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    DOI： 10.1016/j.physc.2004.02.122

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  • Anisotropic spin fluctuations in heavy-fermion superconductor CeCoIn5: In-NQR and Co-NMR studies

    Y Kawasaki, S Kawasaki, M Yashima, T Mito, GQ Zheng, Y Kitaoka, H Shishido, R Settai, Y Haga, Y Onuki

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   72 ( 9 )   2308 - 2311   2003.9

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  • Fermi-liquid ground state in the n-type Pr0.91LaCe0.09CuO4-y copper-oxide superconductor (vol 90, art no 197005, 2003)

    GQ Zheng, T Sato, Y Kitaoka, M Fujita, K Yamada

    PHYSICAL REVIEW LETTERS   91 ( 10 )   2003.9

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  • Extended quasiparticle states outside the vortex cores in a d-wave superconductor

    GQ Zheng

    INTERNATIONAL JOURNAL OF MODERN PHYSICS B   17 ( 18-20 )   3509 - 3512   2003.8

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  • Unconventional superconductivity in ferromagnetic UGe2: a Ge-73 nuclear magnetic resonance/nuclear quadrupole resonance study

    H Kotegawa, S Kawasaki, A Harada, Y Kawasaki, K Okamoto, GQ Zheng, Y Kitaoka, E Yamamoto, Y Haga, Y Onuki, KM Itoh, EE Haller

    JOURNAL OF PHYSICS-CONDENSED MATTER   15 ( 28 )   S2043 - S2046   2003.7

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    DOI： 10.1088/0953-8984/15/28/323

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  • Effect of chemical pressure on the magnetic order in heavy electron system CeRhIn5: In-115 NQR study of CeRh1-xIrxIn5

    N Yamaguchi, H Kan, GQ Zheng, Y Kitaoka, JL Sarrao, JD Thompson

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   388   543 - 544   2003.5

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    DOI： 10.1016/S0921-4534(02)02733-8

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  • Sb-NQR probe for superconducting properties in the Pr-based filled-skutterudite compound PrRu4Sb12

    M Yogi, H Kotegawa, Y Imamura, GQ Zheng, Y Kitaoka, H Sugawara, H Sato

    PHYSICAL REVIEW B   67 ( 18 )   2003.5

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    DOI： 10.1103/PhysRevB.67.180501

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  • Cu-13-NMR study of single-layer high-T-c cuprate Bi2.1Sr1.9CuO6

    A Sakai, GQ Zheng, Y Kitaoka, B Liang, CT Lin

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   388   251 - 252   2003.5

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    DOI： 10.1016/S0921-4534(02)02410-3

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  • Magnetism and superconductivity in CeRhIn5 under chemical and hydrostatic pressures

    GQ Zheng, S Kawasaki, N Yamaguchi, K Tanabe, T Mito, H Kan, Y Kitaoka, Y Haga, D Aoki, Y Onuki, JL Sarrao, JD Thompson

    PHYSICA B-CONDENSED MATTER   329   450 - 451   2003.5

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    DOI： 10.1016/S0921-4526(02)02001-X

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  • Microscopic coexistence of antiferromagnetism and superconductivity in HgBa2Ca4Cu5Oy : Cu-NMR study

    H Kotegawa, Y Tokunaga, Y Araki, GQ Zheng, Y Kitaoka, K Tokiwa, T Watanabe, A Iyo, H Kito, Y Tanaka, H Ihara

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   388   237 - 238   2003.5

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    DOI： 10.1016/S0921-4534(02)02400-0

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  • Unconventional superconductivity in CeIn3: In-115-NQR study under pressure

    S Kawasaki, Y Kawasaki, T Mito, GQ Zheng, Y Kitaoka, S Araki, R Settai, Y Onuki

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   388   541 - 542   2003.5

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    DOI： 10.1016/S0921-4534(02)02732-6

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  • Fermi-liquid ground state in the n-type Pr0.91LaCe0.09CuO4-y copper-oxide superconductor Reviewed

    GQ Zheng, T Sato, Y Kitaoka, M Fujita, K Yamada

    PHYSICAL REVIEW LETTERS   90 ( 19 )   2003.5

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    DOI： 10.1103/PhysRevLett.90.197005

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  • Unconventional superconductivity and quasi-2D magnetic fluctuations in Ce(Ir,Rh)In-5

    GQ Zheng, K Tanabe, S Kawasaki, H Kan, Y Kitaoka, D Aoki, Y Haga, Y Onuki

    ACTA PHYSICA POLONICA B   34 ( 2 )   435 - 438   2003.2

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  • Coexistence of antiferromagnetism and superconductivity near the quantum criticality of the heavy-fermion compound CeRhIn5

    T Mito, S Kawasaki, Y Kawasaki, GQ Zheng, Y Kitaoka, D Aoki, Y Haga, Y Onuki

    PHYSICAL REVIEW LETTERS   90 ( 7 )   2003.2

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    DOI： 10.1103/PhysRevLett.90.077004

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  • Evidence for unconventional strong-coupling superconductivity in PrOs4Sb12: An Sb nuclear quadrupole resonance study

    H Kotegawa, M Yogi, Y Imamura, Y Kawasaki, GQ Zheng, Y Kitaoka, S Ohsaki, H Sugawara, Y Aoki, H Sato

    PHYSICAL REVIEW LETTERS   90 ( 2 )   2003.1

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    DOI： 10.1103/PhysRevLett.90.027001

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  • Magnetic Properties of CeRhIn5 under Pressure Probed by 115In-NQR

    S. Kawasaki, T. Mito, G.-q. Zheng, Y. Kawasaki, Y. Kitaoka, D. Aoki, Y. Haga, R. Settai, Y. Onuki

    Acta Phys. Polonica B   2003

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  • Gapless Magnetic and Quasi-particles Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn5 : 115In-NQR Study under Pressure

    S. Kawasaki, T. Mito, Y. Kawasaki, G.-q. Zheng, Y. Kitaoka, D Aoki, Y Haga, Y. Onuki

    Phys. Rev. Lett.   2003

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  • Unconventional Superconductivity in Skuterudite Compound PrOs4Sb12

    H. Kotegawa, M. Yogi, Y. Imamura, G.-q. Zheng, Y. Kitaoka, S. Ohsaki, H. Sugawara, Y. Aoki, H. Sato

    Acta Phys. Polonica B   2003

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  • Coexistence of antiferromagnetic and paramagnetic electronic phases in quasi-one-dimensional (TMTSF)(2)PF6

    AV Kornilov, VM Pudalov, Y Kitaoka, K Ishida, GQ Zheng, T Mito, JS Qualls

    JETP LETTERS   78 ( 1 )   21 - 24   2003

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    DOI： 10.1134/1.1609570

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  • Gapless magnetic and quasiparticle excitations due to the coexistence of antiferromagnetism and superconductivity in [formula presented]: A study of [formula presented] NQR under pressure Reviewed

    S. Kawasaki, T. Mito, Y. Kawasaki, G. q. Zheng, Y. Kitaoka, D. Aoki, Y. Haga, Y. Ōnuki

    Physical Review Letters   91 ( 13 )   2003

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    DOI： 10.1103/PhysRevLett.91.137001

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  • Fermi-Liquid Ground State in the [Formula presented]-Type [Formula presented] Copper-Oxide Superconductor Reviewed

    Guo-qing Zheng, T. Sato, Y. Kitaoka, M. Fujita, K. Yamada

    Physical Review Letters   90 ( 19 )   4   2003

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    DOI： 10.1103/PhysRevLett.90.197005

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  • 115In-NQR evidence for unconventional superconductivity in CeIn<inf>3</inf> under pressure Reviewed

    S. Kawasaki, T. Mito, Y. Kawasaki, G. Q. Zheng, Y. Kitaoka, H. Shishido, S. Araki, R. Settai, Y. Onuki

    Physical Review B - Condensed Matter and Materials Physics   66 ( 5 )   545211 - 545214   2002.8

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  • Coexistence of antiferromagnetism and superconductivity in heavy-fermion systems

    Y Kitaoka, Y Kawasaki, T Mito, S Kawasaki, GQ Zheng, K Ishida, D Aoki, Y Haga, R Settai, Y Onuki, C Geibel, F Steglich

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   63 ( 6-8 )   1141 - 1146   2002.6

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    DOI： 10.1016/S0022-3697(02)00133-6

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  • Superconducting and magnetic characteristics in the multilayered high-Tc cuprates TlBa2Ca2Cu3O10-y with Tc&gt;130 K probed by Cu and Tl NMR: High value for Tc

    H. Kotegawa, Y. Tokunaga, K. Ishida, G. Q. Zheng, Y. Kitaoka, A. Iyo, Y. Tanaka, H. Ihara

    Physical Review B - Condensed Matter and Materials Physics   65 ( 18 )   1845041 - 1845044   2002.5

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  • Superconducting and magnetic characteristics in the multilayered high-T-c cuprates TlBa2Ca2Cu3O10-y with T-c &gt; 130 K probed by Cu and Tl NMR: High value for T-c

    H Kotegawa, Y Tokunaga, K Ishida, GQ Zheng, Y Kitaoka, A Iyo, Y Tanaka, H Ihara

    PHYSICAL REVIEW B   65 ( 18 )   2002.5

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    DOI： 10.1103/PhysRevB.65.184504

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  • Cu-NQR study of CeCu2(Si0.98Ge0.02)(2) under hydrostatic pressure

    Y Kawasaki, K Ishida, K Obinata, T Mito, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    PHYSICA B-CONDENSED MATTER   312   428 - 430   2002.3

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    DOI： 10.1016/S0921-4526(01)01531-9

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  • Systematic NQR study of the pressure-induced transition from antiferromagnetic to superconducting state in CeRhIn5

    Takeshi Mito, Shinji Kawasaki, Guo-Qing Zheng, Yu Kawasaki, Kenji Ishida, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga, Yoshichika Onuki

    Physica B: Condensed Matter   312-313   16 - 18   2002.3

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    DOI： 10.1016/S0921-4526(01)01157-7

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  • Systematic NQR study of the pressure-induced transition from antiferromagnetic to superconducting state in CeRhIn5

    T Mito, S Kawasaki, GQ Zheng, Y Kawasaki, K Ishida, Y Kitaoka, D Aoki, Y Haga, Y Onuki

    PHYSICA B-CONDENSED MATTER   312   16 - 18   2002.3

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    DOI： 10.1016/S0921-4526(01)01157-7

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  • Delocalized quasiparticles in the vortex state of an overdoped high-T-c superconductor probed by Cu-63 NMR

    GQ Zheng, H Ozaki, Y Kitaoka, P Kuhns, AP Reyes, WG Moulton

    PHYSICAL REVIEW LETTERS   88 ( 7 )   2002.2

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    DOI： 10.1103/PhysRevLett.88.077003

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  • Pressure-temperature phase diagram of antiferromagnetism and superconductivity in ceRhIn<inf>5</inf> and CeIn<inf>3</inf>: 115In-NQR study under pressure

    S. Kawasaki, T. Mito, G. Q. Zheng, C. Thessieu, Y. Kawasaki, K. Ishida, Y. Kitaoka, T. Muramatsu, T. C. Kobayashi, D. Aoki, S. Araki, Y. Haga, R. Settai, Y. Ōnuki, Y. Ōnuki

    Physical Review B - Condensed Matter and Materials Physics   65 ( 2 )   205041 - 205044   2002.1

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  • Evolution of the Magnetism and Superconductivity in CeRhIn5 under Pressure: In-115-NQR Study Reviewed

    Kawasaki Shinji, Mito Takeshi, Zheng Guo-qing, Kawasaki Yu, Ishida Kenji, Kitaoka Yoshio, Aoki Dai, Haga Yoshinori, Onuki Yoshichika

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   71   282 - 284   2002.1

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  • Pressure-temperature phase diagram of antiferromagnetism and superconductivity in CeRhIn5 and CeIn3: In-115-NQR study under pressure

    S Kawasaki, T Mito, GQ Zheng, C Thessieu, Y Kawasaki, K Ishida, Y Kitaoka, T Muramatsu, TC Kobayashi, D Aoki, S Araki, Y Haga, R Settai, Y Onuki

    PHYSICAL REVIEW B   65 ( 2 )   2002.1

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    DOI： 10.1103/PhysRevB.65.020504

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  • Li-7-NMR Study of Spin Liquid State due to Orbital Fluctuation in LiNiO2

    Tatsuya Fujimoto, Guo-qing Zheng, Yoshio Kitaoka, Atsushi Hirano, Ryoji Kanno, Mikio Takanu

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   71   169 - 171   2002.1

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    DOI： 10.1143/JPSJS.71S.169

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  • Strongly Correlated Metallic State of LaNiO3: La-139 NMR Study

    Akihiro Sakai, Guo-qing Zheng, Yoshio Kitaoka

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   71   166 - 168   2002.1

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    DOI： 10.1143/JPSJS.71S.166

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  • Anisotropic Magnetic Fluctuations and Unconventional Superconductivity in the Layered Heavy Fermion Compound CeIrIn5

    Guo-qing Zheng, Kenji Tanabe, Shinji Kawasaki, Yoshio Kitaoka, Dai Aoki, Yoshinori Haga, Yoshichika Onuki

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   71   279 - 281   2002.1

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    DOI： 10.1143/JPSJS.71S.279

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  • 115In-NQR evidence for unconventional superconductivity in CeIn3 under pressure.

    S. Kawasaki, T. Mito, Y. Kawasaki, G.-q. Zheng, Y. Kitaoka, H. Shishido, S. Araki, R. Settai, Y. Onuki

    Phy. Rev. B   2002

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  • Evolution of antiferromagntism and superconductivity in CeRhIn5 under pressure.

    S. Kawasaki, T. Mito, G.-q. Zheng, Y. Kawasaki, K. Ishida, Y. Kitaoka, D. Aoki, S. Araki, Y. Haga, R. Settai, Y. Onuki

    J. Phys. Soc. Jpn.   2002

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  • Delocalized Quasiparticles in the Vortex State of an Overdoped High- [Formula presented] Superconductor Probed by [Formula presented] NMR Reviewed

    G. q. Zheng, H. Ozaki, Y. Kitaoka, P. Kuhns, A. P. Reyes, W. G. Moulton

    Physical Review Letters   88 ( 7 )   4   2002

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    DOI： 10.1103/PhysRevLett.88.077003

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  • (formula presented)-NQR evidence for unconventional superconductivity in (formula presented) under pressure Reviewed

    S. Kawasaki, T. Mito, Y. Kawasaki, G. Zheng, Y. Kitaoka, H. Shishido, S. Araki, R. Settai, Y. Ōnuki

    Physical Review B - Condensed Matter and Materials Physics   66 ( 5 )   1 - 4   2002

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    DOI： 10.1103/PhysRevB.66.054521

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  • Pressure-temperature phase diagram of antiferromagnetism and superconductivity in (formula presented) and (formula presented) (formula presented) study under pressure Reviewed

    S. Kawasaki, T. Mito, G. Zheng, C. Thessieu, Y. Kawasaki, K. Ishida, Y. Kitaoka, T. Muramatsu, T. C. Kobayashi, D. Aoki, S. Araki, Y. Haga, R. Settai, Y. Onuki

    Physical Review B - Condensed Matter and Materials Physics   65 ( 2 )   1 - 4   2002

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    DOI： 10.1103/PhysRevB.65.020504

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  • Superconducting and magnetic characteristics in the multilayered high-(formula presented) cuprates (formula presented) with (formula presented) probed by Cu and Tl NMR: High value for (formula presented) Reviewed

    H. Kotegawa, Y. Tokunaga, K. Ishida, G. Q. Zheng, Y. Kitaoka, A. Iyo, Y. Tanaka, H. Ihara

    Physical Review B - Condensed Matter and Materials Physics   65 ( 18 )   1 - 4   2002

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    DOI： 10.1103/PhysRevB.65.184504

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  • Characterizing the pseudogap in the high-Tc superconductors using very high magnetic fields: Implications on the phase diagram

    Guo-Qing Zheng, H. Ozaki, Y. Kitaoka, W. G. Clark, Y. Kodama, T. Kondo, Y. Shimakawa, Y. Kubo, P. Kuhns, A. P. Reyes, W. G. Moulton

    Physica C: Superconductivity and its Applications   364-365   458 - 461   2001.11

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    DOI： 10.1016/S0921-4534(01)00820-6

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  • Comment on "Magnetic-field-induced low-energy spin excitations in YBa2Cu4O8 measured by high field Gd3+ electron spin resonance"

    GQ Zheng, Y Kitaoka, WG Clark

    PHYSICAL REVIEW LETTERS   87 ( 20 )   2001.11

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  • Characterizing the pseudogap in the high-T-c superconductors using very high magnetic fields: implications on the phase diagram Reviewed

    GQ Zheng, H Ozaki, Y Kitaoka, WG Clark, Y Kodama, T Kondo, Y Shimakawa, Y Kubo, P Kuhns, AP Reyes, WG Moulton

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   364   458 - 461   2001.11

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  • Unusual magnetic and superconducting characteristics in multilayered high-Tc cuprates: 63Cu NMR study

    H. Kotegawa, Y. Tokunaga, K. Ishida, G. Q. Zheng, Y. Kitaoka, H. Kito, A. Iyo, K. Tokiwa, T. Watanabe, H. Ihara

    Physical Review B - Condensed Matter and Materials Physics   64 ( 6 )   645151 - 645155   2001.8

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    DOI： 10.1103/PhysRevB.64.064515

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  • Unusual magnetic and superconducting characteristics in multilayered high-T-c cuprates: Cu-63 NMR study Reviewed

    H Kotegawa, Y Tokunaga, K Ishida, GQ Zheng, Y Kitaoka, H Kito, A Iyo, K Tokiwa, T Watanabe, H Ihara

    PHYSICAL REVIEW B   64 ( 6 )   1 - 5   2001.8

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  • Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5: In-115-NQR study under pressure

    T Mito, S Kawasaki, GQ Zheng, Y Kawasaki, K Ishida, Y Kitaoka, D Aoki, Y Haga, Y Onuki

    PHYSICAL REVIEW B   63 ( 22 )   2001.6

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  • Electrical transport and low-field magnetoresistance in the series of mixed polycrystals (1-m)La2/3Ca1/3MnO3+mLa(2/3)Sr(1/3)MnO(3) Reviewed

    SL Yuan, GQ Zhang, G Peng, F Tu, XY Zeng, J Liu, YP Yang, Y Jiang, CQ Tang

    JOURNAL OF PHYSICS-CONDENSED MATTER   13 ( 24 )   5691 - 5697   2001.6

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  • Exotic magnetic and superconducting phases in CeCU2Si2 close to magnetically ordered state: Cu-NQR study

    Y Kawasaki, K Obinata, K Ishida, T Mito, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   226   374 - 375   2001.5

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  • Unique spin dynamics and unconventional superconductivity in the layered heavy fermion compound CeIrIn5: NQR evidence

    GQ Zheng, K Tanabe, T Mito, S Kawasaki, Y Kitaoka, D Aoki, Y Haga, Y Onuki

    PHYSICAL REVIEW LETTERS   86 ( 20 )   4664 - 4667   2001.5

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    DOI： 10.1103/PhysRevLett.86.4664

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  • Exotic superconducting phase in CeCu2Si2 close to antiferromagnetism: A Cu-NQR study under hydrostatic pressure

    Y Kawasaki, K Ishida, T Mito, C Thessieu, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    PHYSICAL REVIEW B   63 ( 14 )   2001.4

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  • Spin-gap and the superconducting fluctuations in high-T-c cuprates probed by Cu-63 NMR

    GQ Zheng, H Ozaki, Y Kitaoka, WG Clark, Y Kodama, T Kondo, Y Shimakawa, Y Kubo, P Kuhns, AP Reyes, WG Moulton

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   62 ( 1-2 )   25 - 27   2001.1

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    DOI： 10.1016/S0022-3697(00)00095-0

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  • NMR study of carrier distribution and superconductivity in multilayered high-T-c cuprates

    H Kotegawa, Y Tokunaga, K Ishida, GQ Zheng, Y Kitaoka, K Asayama, H Kito, A Iyo, H Ihara, K Tanaka, K Tokiwa, T Watanabe

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS   62 ( 1-2 )   171 - 175   2001.1

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    DOI： 10.1016/S0022-3697(00)00122-0

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  • NMR studies of strongly correlated superconductors

    K. Asayama, Y. Kitaoka, G.-q. Zheng, K. Ishida, Y. Tokunaga

    Annual Reports on NMR Spectroscopy   44, 75-142 (   2001

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  • Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn<inf>5</inf>: 115In-NQR study under pressure

    T. Mito, S. Kawasaki, G. Q. Zheng, Y. Kawasaki, K. Ishida, Y. Kitaoka, D. Aoki, Y. Haga, Y. Onuki

    Physical Review B - Condensed Matter and Materials Physics   63 ( 22 )   2205071 - 2205074   2001

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  • Pressure-induced anomalous magnetism and unconventional superconductivity in (formula presented) (formula presented)-NQR study under pressure Reviewed

    Y. Kawasaki, Y. Onuki, G. q. Zheng, K. Ishida, Y. Kitaoka, S. Kawasaki, T. Mito, D. Aoki, Y. Haga

    Physical Review B - Condensed Matter and Materials Physics   63 ( 22 )   2001

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    DOI： 10.1103/PhysRevB.63.220507

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  • Exotic superconducting phase in CeCu<inf>2</inf>Si<inf>2</inf> close to antiferromagnetism: A Cu-NQR study under hydrostatic pressure

    Y. Kawasaki, K. Ishida, T. Mito, C. Thessieu, G. Zheng, Y. Kitaoka, C. Geibel, F. Steglich

    Physical Review B - Condensed Matter and Materials Physics   63 ( 14 )   1405011 - 1405014   2001

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    DOI： 10.1103/physrevb.63.140501

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  • Effects of high magnetic fields on the pseudogap and d-wave superconductivity in the underdoped and overdoped high-T-c superconductors

    GQ Zheng, H Ozaki, WG Clark, M Sakai, Y Kitaoka, Y Kodama, T Kondo, Y Shimakawa, Y Kubo, P Kuhns, AP Reyes, WG Moulton

    PHYSICA C   341   819 - 822   2000.11

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    DOI： 10.1016/S0921-4534(00)00703-6

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  • Superconducting fluctuations and the pseudogap in the slightly overdoped high-Tc superconductor TlSr2CaCu2O6.8: high magnetic field NMR studies

    Guo-Qing Zheng, H. Ozaki, W. G. Clark, Y. Kitaoka, P. Kuhns, A. P. Reyes, W. G. Moulton, T. Kondo, Y. Shimakawa, Y. Kubo

    Physical Review Letters   85 ( 2 )   405 - 408   2000.7

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    DOI： 10.1103/PhysRevLett.85.405

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  • Superconducting fluctuations and the pseudogap in the slightly overdoped high-T-c superconductor TlSr2CaCu2O6.8: High magnetic field NMR studies

    GQ Zheng, H Ozaki, WG Clark, Y Kitaoka, P Kuhns, AP Reyes, WG Moulton, T Kondo, Y Shimakawa, Y Kubo

    PHYSICAL REVIEW LETTERS   85 ( 2 )   405 - 408   2000.7

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    DOI： 10.1103/PhysRevLett.85.405

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  • d-wave vortex and pseudogap in underdoped high-T-c, cuprate YBa2Cu4O8: high-magnetic-field NMR

    GQ Zheng, WG Clark, Y Kitaoka, K Asayama, Y Kodama, P Kuhns, WG Moulton

    PHYSICA B   281   901 - 903   2000.6

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    DOI： 10.1016/S0921-4526(99)01161-8

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  • Cu-NQR study of magnetism and superconductivity in Ce1+xCu2+ySi2 under pressure

    K Ishida, Y Kawasaki, T Mito, C Thessieu, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    HYPERFINE INTERACTIONS   128 ( 1-3 )   193 - 204   2000

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    DOI： 10.1023/A:1012635716291

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  • Cu-NQR study of magnetism and superconductivity in Ce1+xCu2+ySi2 under pressure

    K Ishida, Y Kawasaki, T Mito, C Thessieu, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    HYPERFINE INTERACTIONS   128 ( 1-3 )   193 - 204   2000

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  • Nuclear magnetic resonance study of strongly correlated superconductors

    K Asayama, Y Kitaoka, GQ Zheng, K Ishida, Y Tokunaga, H Mukuda, T Ohno

    APPLIED MAGNETIC RESONANCE   19 ( 3-4 )   305 - 319   2000

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    DOI： 10.1007/BF03162372

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  • In-NQR study of CeIn3 under pressure

    C. Thessieu, K. Ishida, T. Mito, S. C. Kawasaki, Y. Kawasaki, G.-q. Zheng, Y.Kitaoka, Y.Onuki

    Physica B   2000

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  • Cu-NQR study of magnetism and superconductivity in Ce1+xCu2+ySi2 under pressure

    K Ishida, Y Kawasaki, T Mito, C Thessieu, GQ Zheng, Y Kitaoka, C Geibel, F Steglich

    HYPERFINE INTERACTIONS   128 ( 1-3 )   193 - 204   2000

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    DOI： 10.1023/A:1012635716291

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  • Nuclear magnetic resonance study of strongly correlated superconductors

    K Asayama, Y Kitaoka, GQ Zheng, K Ishida, Y Tokunaga, H Mukuda, T Ohno

    APPLIED MAGNETIC RESONANCE   19 ( 3-4 )   305 - 319   2000

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    DOI： 10.1007/BF03162372

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  • Effects of high magnetic fields on the pseudogap and d-wave superconductivity in the underdoped and overdoped high-Tc superconductors

    Guo-Qing Zheng, H. Ozaki, W. G. Clark, M. Sakai, Y. Kitaoka, Y. Kodama, T. Kondo, Y. Shimakawa, Y. Kubo, P. Kuhns, A. P. Reyes, W. G. Moulton

    Physica C: Superconductivity and its Applications   341-348 ( 3 )   819 - 822   2000

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    DOI： 10.1016/S0921-4534(00)00703-6

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  • Pseudogap and superconductivity under high magnetic field in underdoped high-T-c cuprate

    GQ Zheng, Y Kitaoka, K Asayama, Y Kodama, WG Clark, P Kuhns, WG Moulton

    INTERNATIONAL JOURNAL OF MODERN PHYSICS B   13 ( 29-31 )   3764 - 3766   1999.12

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    DOI： 10.1142/S021797929900388X

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  • Carrier distribution and superconductivity in multilayer high-T-c cuprates proved by Cu-63 NMR

    Y Tokunaga, H Kotegawa, K Ishida, GQ Zheng, Y Kitaoka, K Tokiwa, A Iyo, H Ihara

    JOURNAL OF LOW TEMPERATURE PHYSICS   117 ( 3-4 )   473 - 477   1999.11

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  • Responses of the pseudogap and d-wave superconductivity to high magnetic fields in the underdoped high-T-c superconductor YBa2Cu4O8: An NMR study

    GQ Zheng, WG Clark, Y Kitaoka, K Asayama, Y Kodama, P Kuhns, WG Moulton

    PHYSICAL REVIEW B   60 ( 14 )   R9947 - R9950   1999.10

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    DOI： 10.1103/PhysRevB.60.R9947

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  • NMR study of magnetic excitations and pseudogap in HgBa2Ca3Cu4Oy

    Y Tokunaga, K Ishida, K Magishi, S Ohsugi, GQ Zheng, Y Kitaoka, K Asayama, A Iyo, K Tokiwa, H Ihara

    PHYSICA B-CONDENSED MATTER   259-61   571 - 572   1999.1

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    DOI： 10.1016/S0921-4526(98)01066-7

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  • Study of spin-ladder system under pressure

    T Mito, K Magishi, S Matsumoto, GQ Zheng, Y Kitaoka, K Asayama, N Motoyama, H Eisaki, S Uchida

    PHYSICA B-CONDENSED MATTER   259-61   1042 - 1043   1999.1

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  • NMR study of high-T-c superconductors and related materials

    K Ishida, Y Tokunaga, Y Kitaoka, GQ Zheng, K Magishi, H Mukuda, H Tou, T Mito, K Asayama

    PHYSICA B-CONDENSED MATTER   259-61   511 - 516   1999.1

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    DOI： 10.1016/S0921-4526(98)01015-1

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  • Carrier distribution and superconductivity in multilayered high-Tc cuprates probed by Cu NMR

    Y. Tokunaga, H. Kotegawa, K. Ishida, G.-q. Zheng, Y. Kitaoka, K. Tokiwa, A. Iyo, H. Ihara

    Journal of Low Temperature Physics   1999

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  • 55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure

    Guo-Qing Zheng, K. Nishikido, K. Ohnishi, Y. Kitaoka, K. Asayama, R. Hauser

    Physical Review B - Condensed Matter and Materials Physics   59 ( 21 )   13973 - 13976   1999

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    DOI： 10.1103/PhysRevB.59.13973

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  • 55Mn NQR/NMR studies of the magnetic properties of YMn2 under pressure

    Guo-Qing Zheng, K. Nishikido, K. Ohnishi, Y. Kitaoka, K. Asayama, R. Hauser

    Physical Review B - Condensed Matter and Materials Physics   59 ( 21 )   13973 - 13976   1999

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    DOI： 10.1103/PhysRevB.59.13973

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  • NMR study of high-Tc superconductors and related materials

    K. Ishida, Y. Tokunaga, Y. Kitaoka, G. Q. Zheng, K. Magishi, H. Mukuda, H. Tou, T. Mito, K. Asayama

    Physica B: Condensed Matter   259-261   511 - 516   1999

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    DOI： 10.1016/S0921-4526(98)01015-1

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  • Study of spin-ladder system under pressure

    T. Mito, K. Magishi, S. Matsumoto, G. Q. Zheng, Y. Kitaoka, K. Asayama, N. Motoyama, H. Eisaki, S. Uchida

    Physica B: Condensed Matter   259-261   1042 - 1043   1999

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    DOI： 10.1016/S0921-4526(98)00807-2

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  • 11B NMR of YNi2B2C single crystal in the superconducting state

    Guo-Qing Zheng, Y. Wada, K. Hashimoto, Y. Kitaoka, K. Asayama, H. Takeya, K. Kadowaki

    Journal of Physics and Chemistry of Solids   59 ( 10-12 )   2169 - 2172   1998

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    DOI： 10.1016/S0022-3697(98)00205-4

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  • Pressure Effect on the Spin Fluctuations in YMn2 Mn NQR Study

    K. Nishikido, C. Thessieu, G. Q. Zheng, Y. Kitaoka, K. Asayama, R. Hauser

    Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu   7   626 - 628   1998

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    DOI： 10.4131/jshpreview.7.626

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  • NMR study of disorder effect on the superconductivity in Tl2Ba2Ca2Cu3O10

    Guo-Qing Zheng, Y. Kitaokaa, K. Asayama, K. Hamada, H. Yamauchi, S. Tanaka

    Physica C: Superconductivity and its Applications   282-287 ( 3 )   1385 - 1386   1997

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    DOI： 10.1016/S0921-4534(97)00785-5

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  • Effect of Structural Disorder on the Superconductivity in Tl2Ba2Ca2Cu3O10

    Guo-Qing Zheng, Hayato Wakabayashi, Yoshio Kitaoka, Kunisuke Asayama, Kazuyuki Hamada, Hisao Yamauchi, Shoji Tanaka

    Journal of the Physical Society of Japan   66 ( 7 )   1880 - 1883   1997

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    DOI： 10.1143/JPSJ.66.1880

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  • Spin-gap behavior in underdoped TlSr2(Lu0.7Ca0.3)Cu2Oy: Cu-63 and Tl-205 NMR studies Reviewed

    K Magishi, Y Kitaoka, GQ Zheng, K Asayama, T Kondo, Y Shimakawa, T Manako, Y Kubo

    PHYSICAL REVIEW B   54 ( 5 )   3070 - 3073   1996.8

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  • NMR study of local hole distribution, spin fluctuation and superconductivity in Tl2Ba2Ca2Cu3O10

    Guo-Qing Zheng, Yoshio Kitaoka, Kunisuke Asayama, K. Hamada, H. Yamauchi, S. Tanaka

    Physica C: Superconductivity and its Applications   260 ( 3-4 )   197 - 210   1996.4

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    DOI： 10.1016/0921-4534(96)00092-5

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  • Cu-63 NMR probe of superconducting properties in HgBa2Ca2Cu3O8+delta: A possible reason for T-c=133K Reviewed

    K Magishi, Y Kitaoka, GQ Zheng, K Asayama, K Tokiwa, A Iyo, H Ihara

    PHYSICAL REVIEW B   53 ( 14 )   R8906 - R8909   1996.4

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  • Spin correlation and superconductivity in overdoped TlSr2CaCu2O7-δ

    K. Magishi, Y. Kitaoka, G. Q. Zhen, K. Asayama, T. Kondo, Y. Shimakawa, T. Manako, Y. Kubo

    Czechoslovak Journal of Physics   46 ( 2 )   1091 - 1092   1996

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    DOI： 10.1007/BF02583853

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  • NMR of high Tc superconductors

    K. Asayama, Y. Kitanka, G. Q. Zheng, K. Ishida, K. Magishi, T. Mito, Y. Tokunaga

    Czechoslovak Journal of Physics   46 ( 6 )   3187 - 3194   1996

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  • 93Nb NQR Study in Layered Superconducting 2H-NbSe2

    Kenji Ishida, Yoshihiro Niino, Guo-Qing Zheng, Yoshio Kitaoka, Kunisuke Asayama, Tsukio Uhtani

    Journal of the Physical Society of Japan   65 ( 7 )   2341 - 2342   1996

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    DOI： 10.1143/JPSJ.65.2341

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  • Zn and Ni doping effects on Tc and spin gap behavior in YBa2Cu4O8 and YBa2Cu3O6.6

    G. Q. Zheng, T. Odaguchi, Y. Kitaoka, K. Asayama, Y. Kodama, K. Mizuhashi, S. Uchida

    Physica C: Superconductivity and its Applications   263 ( 1-4 )   367 - 370   1996

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    DOI： 10.1016/0921-4534(96)00083-4

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  • 63Cu NMR investigation of HgBa2Ca2Cu3O8+δ

    K. Magishi, G. Q. Zheng, Y. Kitaoka, K. Asayama, K. Tokiwa, A. Iyo, H. Ihara

    Physica C: Superconductivity and its Applications   263 ( 1-4 )   375 - 377   1996

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    DOI： 10.1016/0921-4534(95)00830-6

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  • Magnetic excitation and superconductivity in overdop: A NMR study

    K. Magishi, Y. Kitaoka, G. Zheng, K. Asayama, T. Kondo, Y. Shimakawa, T. Manako, Y. Kubo

    Physical Review B - Condensed Matter and Materials Physics   54 ( 14 )   10131 - 10142   1996

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    DOI： 10.1103/PhysRevB.54.10131

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  • NMR probe of superconducting properties in: A possible reason for K Reviewed

    K. Magishi, Y. Kitaoka, G. Zheng, K. Asayama, K. Tokiwa, A. Iyo, H. Ihara

    Physical Review B - Condensed Matter and Materials Physics   53 ( 14 )   R8906 - R8909   1996

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    DOI： 10.1103/PhysRevB.53.R8906

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  • 63Cu NMR and NQR studies of high-Tc cuprates under pressure

    Guo-Qing Zheng, Takeshi Mito, Yoshio Kitaoka, Kunisuke Asayama, Yasuhiro Kodama

    Physica C: Superconductivity and its applications   243 ( 3-4 )   337 - 341   1995.3

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    DOI： 10.1016/0921-4534(95)00029-1

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  • NMR study of strongly correlated electron systems Reviewed

    Y. Kitaoka, H. Tou, G. -q. Zheng, K. Ishida, K. Asayama, T. C. Kobayashi, A. Kohda, N. Takeshita, K. Amaya, Y. Onuki, G. Geibel, C. Schank, F. Steglich

    PHYSICA B-CONDENSED MATTER   206 ( 1-4 )   55 - 61   1995.2

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    DOI： 10.1016/0921-4526(94)00365-3

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    Other Link： http://orcid.org/0000-0001-5081-2777

  • Characteristics of the Spin Fluctuation in Tl2Ba2Ca2Cu3O10

    Guo-qing Zheng, Yoshio Kitaoka, Kunisuke Asayama, Kazuyuki Hamada, Hisao Yamauchi, Shoji Tanaka, Hisao Yamauchi

    Journal of the Physical Society of Japan   64 ( 9 )   3184 - 3187   1995

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    DOI： 10.1143/JPSJ.64.3184

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  • Spin Correlation in High-Tc Cuprate HgBa2Ca2Cu3O8+δ with Tc=133 K—An Origin of Tc-Enhancement Evidenced by 63Cu-NMR Study

    Ko-ichi Magishi, Yoshio Kitaoka, Guo-qing Zheng, Kunisuke Asayama, Kazuyasu Tokiwa, Akira Iyo, Hideo Imara

    Journal of the Physical Society of Japan   64 ( 12 )   4561 - 4565   1995

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    DOI： 10.1143/JPSJ.64.4561

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  • NMR study in novel superconductors: Heavy-fermion system and high-Tc cuprate

    Y. Kitaoka, K. Ishida, G. Q. Zheng, H. Tou, K. Magishi, S. Matsumoto, K. Yamazoe, H. Yamanaka, K. Asayama

    Journal of Physics and Chemistry of Solids   56 ( 12 )   1931 - 1935   1995

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    DOI： 10.1016/0022-3697(95)00098-4

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  • Local Hole Distribution in the CuO2 Plane of High-Tc Cu-Oxides Studied by Cu and Oxygen NQR/NMR

    Guo-qing Zheng, Yoshio Kitaoka, Kenji Ishida, Kunisuke Asayama

    Journal of the Physical Society of Japan   64 ( 7 )   2524 - 2532   1995

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    DOI： 10.1143/JPSJ.64.2524

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  • NMR-STUDY OF SYMMETRY OF THE SUPERCONDUCTING ORDER-PARAMETER IN HIGH-T-C CUPRATE SUPERCONDUCTOR Reviewed

    Y KITAOKA, K ISHIDA, GQ ZHENG, S OHSUGI, K YAMAZOE, K ASAYAMA

    PHYSICA C   235   1881 - 1882   1994.12

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  • Magnetic-field enhancement of 63Cu and 17O relaxation rates in the mixed state of YBa2Cu4O8 observation of fermi-liquid state in the vortex cores

    Guo-qing Zheng, Yoshio Kitaoka, Kunisuke Asayama, Yasuharu Kodama

    Physica C: Superconductivity and its applications   227 ( 1-2 )   169 - 175   1994.6

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    DOI： 10.1016/0921-4534(94)90370-0

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  • Cu NMR and NQR Studies of High-Tc Superconductor La2-xSrxCuO4

    Shigeki Ohsugi, Yoshio Kitaoka, Kenji Ishida, Guo-Qing Zheng, Kunisuke Asayama

    Journal of the Physical Society of Japan   63 ( 2 )   700 - 715   1994

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    DOI： 10.1143/JPSJ.63.700

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  • Pressure dependence of local hole distribution and spin correlation in La1.85Sr0.15CuO4

    Guo-qing Zheng, Takeshi Mito, Yoshio Kitaoka, Kunisuke Asayama

    Physica C: Superconductivity and its applications   235-240 ( 3 )   1577 - 1578   1994

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    DOI： 10.1016/0921-4534(94)92014-1

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  • 63Cu NMR study in high-Tc superconductor TlSr2(Lu1-xCax)Cu2oy Reviewed

    K. Magishi, G.-q. Zheng, Y. Kitaoka, T. Kondo, Y. Shimakawa, T. Manako, Y. Kubo

    Physica C: Superconductivity and its applications   235-240 ( PART 3 )   1631 - 1634   1994

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  • CU-63 NMR-STUDY OF HEAVILY-DOPED SUPERCONDUCTOR TLSR2CACU2O7-GAMMA Reviewed

    GQ ZHENG, K MAGISHI, Y KITAOKA, K ASAYAMA, T KONDO, Y SHIMAKAWA, T MANAKO, Y KUBO

    PHYSICA B-CONDENSED MATTER   186-88   1012 - 1014   1993.5

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  • 17O NMR study of La2-xSrxCuO4 in the lightly-and heavily-doped regions

    G. Q. Zheng, T. Kuse, Y. Kitaoka, K. Ishida, S. Ohsugi, K. Asayama, Y. Yamada

    Physica C: Superconductivity and its applications   208 ( 3-4 )   339 - 346   1993.4

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    DOI： 10.1016/0921-4534(93)90206-6

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  • NMR in highly correlated superconductors Reviewed

    K. Asayama, Y. Kitaoka, G. q. Zheng, K. Ishida, S. Ohsugi

    Hyperfine Interactions   79 ( 1-4 )   835 - 849   1993.3

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    DOI： 10.1007/BF00567615

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  • NMR and NQR studies of spin correlation and superconductivity in high-Tc oxides

    Y. Kitaoka, K. Ishida, G. q. Zheng, S. Ohsugi, K. Asayama

    Journal of Physics and Chemistry of Solids   54 ( 10 )   1385 - 1392   1993

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    DOI： 10.1016/0022-3697(93)90198-Z

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  • 63Cu NQR/NMR Study of Zn-Substituted YBa2Cu408 -Effect of Impurity on Spin-Gap-Like Behavior-

    Guo-Qing Zheng, Takahiro Odaguchi, Yasuharu Kodama

    Journal of the Physical Society of Japan   62 ( 8 )   2591 - 2594   1993

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    DOI： 10.1143/JPSJ.62.2591

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  • NMR IN HIGHLY CORRELATED SUPERCONDUCTORS

    K ASAYAMA, Y KITAOKA, GQ ZHENG, K ISHIDA, S OHSUGI

    HYPERFINE INTERACTIONS   79 ( 1-4 )   835 - 849   1993

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  • 17O NMR study of local hole density and spin dynamics in YBa2Cu4O8

    Guo-qing Zheng, Yoshio Kitaoka, Kunisuke Asayama, Yasuharu Kodama, Yoshihiro Yamada

    Physica C: Superconductivity and its applications   193 ( 1-2 )   154 - 162   1992.4

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    DOI： 10.1016/0921-4534(92)90882-D

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  • NQR AND NMR IN HIGH-TC SUPERCONDUCTORS Reviewed

    K ASAYAMA, Y KITAOKA, GQ ZHENG

    ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES   47 ( 1-2 )   7 - 11   1992.1

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  • CORRELATION BETWEEN TC AND THE HOLE DENSITY AT CU AND OXYGEN Reviewed

    GQ ZHENG, E YANASE, K ISHIDA, Y KITAOKA, K ASAYAMA, Y KODAMA, S ENDO

    PHYSICA C   185   767 - 768   1991.12

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  • O-17 AND CU-63 NMR INVESTIGATIONS OF HIGH-TC SUPERCONDUCTOR LA1.85SR0.15CUO4 WITH TC = 38-K Reviewed

    K ISHIDA, Y KITAOKA, GQ ZHENG, K ASAYAMA

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   60 ( 10 )   3516 - 3524   1991.10

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  • NQR investigation of high Tc superconductors under pressure

    Guo-qing Zheng, Etsuya Yanase, Kenji Ishida, Yoshio Kitaoka, Kunisuke Asayama, Yasuharu Kodama, Ritsu Tanaka, Sei Nakamichi, Shoichi Endo

    Solid State Communications   79 ( 1 )   51 - 55   1991

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    DOI： 10.1016/0038-1098(91)90478-E

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  • NQR study of high-Tc superconductor TlSr2CaCu2O7-δ Reviewed

    G.-q. Zheng, Y. Kitaoka, K. Asayama, T. Kondo, Y. Shimakawa, T. Manako, Y. Kubo

    Physica C: Superconductivity and its applications   185-189 ( PART 2 )   765 - 766   1991

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  • Proximity Effect-Induced Superconductivity and NMR Relaxation in Nb-Cu Multilayers

    Guo-Qing Zheng, Yoshio Kitaoka, Yasukage Oda, Kunisuke Asayama, Yoshihisa Obi, Hiroyasu Fujimori, Ryozo Aoki

    Journal of the Physical Society of Japan   60 ( 2 )   599 - 607   1991

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    DOI： 10.1143/JPSJ.60.599

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  • Energy gap of proximity-effect-induced superconductivity in NbCu multilayers

    G. q. Zheng, Y. Kitaoka, Y. Oda, Y. Kohori, K. Asayama, Y. Obi, H. Fujimori, R. Aoki

    Physica B: Physics of Condensed Matter   165-166 ( 1 )   481 - 482   1990

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    DOI： 10.1016/S0921-4526(90)81090-B

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  • NMR Study of the Proximity Effect in Nb-Cu Multilayers 共著

    Zheng Guo-qing, Kohori Yoh, Oda Yasukage, Asayama Kunisuke, Aoki Ryozo, Obi Yoshihisa, Fujimori Hiroyasu

    J. Phys. Soc. Jpn.   58 ( 1 )   39 - 42   1989.1

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    A series of measurements on the nuclear spin-lattice relaxation rate, $T_{1}^{-1}$, of 63Cu in superconducting multilayer Nb–Cu has been performed over a temperature range from 4.2 K down to 0.3 K, using the field cycling method. $T_{1}^{-1}$ decreases rapidly after an initial increment just below $T_{\text{c } }$. At low temperatures, however, the rate of the decrease slows down, and $T_{1}^{-1}$ decreases in proportion to temperature. It has been concluded that such behavior of $T_{1}^{-1}$ originates from a distribution of the energy gap of the Cooper pairs in Cu. The electrons which are propagated nearly normal to the S–N interface have a finite energy gap predicted by McMillan, while the electrons propagated nearly parallel to the interface are gapless and behave like normal electrons.

    DOI： 10.1143/JPSJ.58.39

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  • NMR observation in Nd1.85Ce0.15 CuO4-y

    Guo-Qing Zheng, Yoshio Kitaoka, Yasukage Oda, Kunisuke Asayama

    Journal of the Physical Society of Japan   58 ( 6 )   1910 - 1913   1989

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    DOI： 10.1143/JPSJ.58.1910

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  • CU-63 NMR-STUDY OF SUPERCONDUCTING CU/NB MULTILAYER-FILM Reviewed

    R AOKI, Y KOHORI, GQ ZHENG, Y ODA, K ASAYAMA, S WADA

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   56 ( 12 )   4495 - 4502   1987.12

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  • CU-63 NMR-STUDY OF SUPERCONDUCTING CU/NB SUPERLATTICE Reviewed

    R AOKI, GQ ZHENG, Y KOHORI, Y ODA, K ASAYAMA, S WADA, Y OBI

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS   26   1455 - 1456   1987

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Books

  • 超伝導を詩う Reviewed

    鄭　国慶（ Role： Sole author）

    岡山大学出版会  2021.3 

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    Total pages：207   Book type：Textbook, survey, introduction

  • Poems of Superconductivity

    Zheng Guo-qing（ Role： Sole author）

    2021.3  （ ISBN:9784904228685 ）

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    Total pages：205p  

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  • Handbook of superconductivity

    2009 

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  • 超伝導ハンドブック

    朝倉書店  2009 

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  • Proceedings of the 17th International Conference on Magnetis

    Elsevier BV  2007 

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MISC

  • High quality single crystal growth of and NMR measurements for the spin-triplet superconductor K2Cr3As3

    小川晟吾, 三好智己, 俣野和明, 川崎慎司, 稲田佳彦, ZHENG G.-q.

    日本物理学会講演概要集(CD-ROM)   79 ( 1 )   2024

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  • Single Crystal Growth and measurements of susceptibility for K2Cr3As3

    小川晟吾, 三好智己, 俣野和明, 稲田佳彦, ZHENG G.-q.

    日本物理学会講演概要集(CD-ROM)   78 ( 1 )   2023.3

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    Authorship：Last author   Language：Japanese   Publishing type：Research paper, summary (national, other academic conference)  

    J-GLOBAL

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  • ワイル半金属における軌道反磁性と低エネルギー励起

    俣野 和明, 鄭 国慶, Rui Zhou

    固体物理 / アグネ技術センター [編]   58 ( 1 )   31 - 39   2023.1

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  • 75As-NMR study of K2Cr3As3

    小川晟吾, 三好智己, 俣野和明, 川崎慎司, 稲田佳彦, ZHENG G.-q.

    日本物理学会講演概要集(CD-ROM)   78 ( 2 )   2023

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  • Localized-to-Itinerant Transition Preceding Antiferromagnetic Quantum Critical Point Leads to Odd-Frequency Superconductivity in CeRh0.5Ir0.5In5 Invited Reviewed

    Shinji Kawasaki, Guo-qing Zheng

    BUTSURI   77 ( 6 )   361 - 366   2022.6

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    DOI： 10.11316/butsuri.77.6_361

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  • Superconductivity and spin fluctuations in non-centrosymmetric superconductor (Nb,Ta)Rh2B2

    俣野和明, 小椋亮, FOUNTAINE Mateo, JESCHKE Harald O., 川崎慎司, ZHENG G.-q.

    日本物理学会講演概要集(CD-ROM)   77 ( 1 )   2022

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  • Localized-to-itinerant transition preceding antiferromagnetic quantum critical point and gapless superconductivity in CeRh0.5Ir0.5In5

    川崎慎司, 岡利英, 反り目章, 小亀雄司, 上本和宏, 俣野和明, GUO J., CAI S., SUN Liling, SARRAO J. L., THOMPSON J. D., ZHENG Guo-qing, ZHENG Guo-qing

    日本物理学会講演概要集(CD-ROM)   76 ( 1 )   2021

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  • 超伝導体LaPt2-xGe2+xの構造相転移に関するNMR/NQR法を用いた研究

    前田賢輝, 俣野和明, 八谷諒, 小口多美夫, ZHENG Guo-qing

    日本物理学会講演概要集(CD-ROM)   70 ( 1 )   2015

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  • 30aCM-3 Superconductivity and electronic phase diagram of LaPt_<2-x>Ge_<2+x>

    Maeda Satoki, Matano Kazuaki, Sawaoka Hiroki, Inada Yoshihiko, Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   674 - 674   2014.3

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  • 28aBF-12 NMR studies on candidate of topological superconductor Cu_xBi_2Se_3

    Matano K., Yamamoto H., Ueshima K., Iwase F., Kriener M., Segawa K., Ando Y., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   707 - 707   2014.3

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  • 28aBF-11 NMR study of topological crystal superconductor Sn_<1-x>In_xTe

    Katsube S., Matano K., Novak M, Segawa K., Ando Y., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   707 - 707   2014.3

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  • 27aCE-9 NMR study of Sr_2VFeAsO_3 under pressure

    Ueshima K., Han F., Wen Hai-Hu, Kawasaki S., Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   545 - 545   2014.3

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  • 28aCM-12 ^<125>Te-NMR study of superconductor Ir_<1-x>Pt_xTe_2 with strong spin-orbit coupling

    Oka T, Iwase F, Pyon S, Kudo K, Nohara M, Zheng G.-q

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   593 - 593   2014.3

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  • 29pBA-5 Magnetic and Nematic quantum criticality of carrier-doped Fe-pnictide superconductors

    Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   643 - 643   2014.3

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  • 30aCM-10 空間反転対称性の欠如したパリティ混合超伝導体Li_2T_3B(T:Pd,Pt)の非磁性不純物効果の異常性(30aCM 超伝導物質,領域8(強相関係))

    包 桂芝, 江口 学, 小野 晶子, 俣野 和明, 稲田 佳彦, 前野 悦輝, 市岡 優典, 鄭 国慶

    日本物理学会講演概要集   69 ( 1 )   675 - 675   2014.3

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  • 27pCM-7 NMR study of the pseudogap ground state in single layered cuprate Bi_2Sr_<2-x>La_xCuO_<6+δ>

    Motoyama Takeshi, Kawasaki Shinji, Lin Chengtian, Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   69 ( 1 )   568 - 568   2014.3

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  • LaPt2-xGe2+xの超伝導と電子相図

    前田賢輝, 俣野和明, 澤岡浩貴, 稲田佳彦, ZHENG Guo-Qing

    日本物理学会講演概要集   69 ( 1 )   2014

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  • Te-NMR study of new superconductor (Ir,Au)_<1-x>Pt_xTe_2

    Oka T., Iwase F., Kudo K., Ishii H., Nohara M., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   440 - 440   2013.8

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  • NMR study of Sr_2VFeAsO_3

    Ueshima K., Han F., Wen Hai-Hu, Kawasaki S., Guo-qing Zheng

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   557 - 557   2013.8

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  • Crystal structure and superconductivity in LaPt_<2-x>Ge_<2+x>

    Maeda Satoki, Matano Kazuaki, Sawaoka Hiroki, Inada Yoshihiko, Zhng Guo-qing

    Meeting abstracts of the Physical Society of Japan   68 ( 2 )   568 - 568   2013.8

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  • 29pXG-9 NMR study of Sr_2VFeAsO_3

    Ueshima K., Han F., Wen Hai-Hu, Kawasaki S., Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   68 ( 1 )   722 - 722   2013.3

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  • 29aXJ-2 The non-magnetic impurity effect in parity mixing superconductor Li_2T_3B(T=Pd,Pt)with nonoentyosymme tric crystal structures

    Bao G., Eguchi G., Inada Y., Ichioka M., Maeno Y., Zheng G-q.

    Meeting abstracts of the Physical Society of Japan   68 ( 1 )   688 - 688   2013.3

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  • 29aXJ-1 Magnetic field dependence of the specific heat of the non-centrosymmetric superconductor Li_2(Pd_<1-x>Pt_x)_3B

    Eguchi G., Bao G., Harada S., Peets Darre C., Kriener Markus, Inada Y., Zheng G.-q., Yonezaw S., Maeno Y.

    Meeting abstracts of the Physical Society of Japan   68 ( 1 )   688 - 688   2013.3

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  • LaPt2-xGe2+xの結晶構造と超伝導

    前田賢輝, 俣野和明, 澤岡浩貴, 稲田佳彦, ZHENG Guo-Qing

    日本物理学会講演概要集   68 ( 2 )   2013

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  • 元素置換によるスピン軌道相互作用の変化と超伝導

    江口学, PEETS D. C., KRIENER M., 包桂芝, 稲田佳彦, 原田翔太, 鄭国慶, 前野悦輝

    京都大学低温物質科学研究センター誌   ( 22 )   2013

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  • 20aPSB-50 Control of superconductivity in Parity mixing superconductors Li_2T_3B(T:Pt, Pd) by non-magnetic impurity and defect doping

    Bao G., Eguchi G., Inada Y., Maeno Y., Zheng G-q.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   536 - 536   2012.8

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  • 19aGB-11 ^<125>Te-NMR on the superconductors Ir_<1-x>Pt_xTe_2

    Iwase F., Pyon S., Kudo K., Nohara M., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   479 - 479   2012.8

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  • 19aGB-7 NMR/NQR study of the impurity effect in non-centrosymmetric superconductor Li_2Pt_3B and SrPtAs

    Arima K., Harada S., Nishikubo Y., Kudo K., Nohara M., Bao G. Z., Inada Y., Matano K., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   478 - 478   2012.8

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  • 21aGA-3 As-NQR study of LaFeAsO_<1-x>F_x (VII)

    Oka T., Li Z., Kawasaki S., Zheng G. -q., Chen G. F., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   581 - 581   2012.8

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  • 21aGA-13 NMR study of Sr_2VFeAsO_3

    Ueshima K., Han F, Wen Hai-Hu, Kawasaki S., Zheng G. -q., Zhu Xiyu

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   583 - 583   2012.8

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  • 19aGB-1 NMR study of SrPt_2As_2

    Tani Y., Kawasaki S., Nishikubo Y., Kudo K., Nohara M., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   67 ( 2 )   477 - 477   2012.8

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  • 25aYH-10 NMR/NQR studies of the non-centrosymmetric superconductor

    Matano Kazuaki, Muro Yuuji, Takabatake Toshiro, Joshi Bhanu, Ramakrishnan S., Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   67 ( 1 )   595 - 595   2012.3

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  • 25pYA-7 As-NQR study of LaFeAsO_<1-x>F_x (VI)

    Oka T., Li Z., Kawasaki S., Zheng G. -q., Chen G. F., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   67 ( 1 )   634 - 634   2012.3

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  • 25aYB-3 In-NQR study of CeRh_<1-x>Ir_xIn_5 under pressure II

    Sorime A., Kawasaki S., Zheng G. -q., Sarrao J. L., Thmpson J. D.

    Meeting abstracts of the Physical Society of Japan   67 ( 1 )   586 - 586   2012.3

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  • 26pBD-5 Electronic state of the topological superconductor Cu_xBi_2Se_3 at low temperatures

    Iwase F., Zheng G.-q., Hor Y. S., Kriener M., Ren Z., Ando Y.

    Meeting abstracts of the Physical Society of Japan   67 ( 1 )   741 - 741   2012.3

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  • Abrupt enhancement of noncentrosymmetry and appearance of a spin-triplet superconducting state in Li-2(Pd1-xPtx)(3)B beyond x=0.8

    S.Harada, J.J. Zhou, Y.G. Yao, Y. Inada, G.q. Zheng

    PHYSICAL REVIEW B   86 ( 22 )   220502-1-220502-5   2012

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  • Li2(Pd1-xPtx)3B magnetic phase diagram and superconducting parameters Reviewed

    D.C. Peets, G. Eguchi, M. Kriener, S. Harada, Sk.Md. Shamsuzzaman, Y. Inada, G.-Q. Zheng, Y. Maeno

    Journal of Physics: Conference Series   400 ( PART 2 )   2012

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  • 22aPS-90 Study of the noncentrosymmetric superconductor and associated material

    Sawaoka H., Harada S., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   530 - 530   2011.8

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  • 21pGD-13 ^<195>Pt NMR in Li_2(Pd_<1-x>Pt_x)_3B with broken inversion symmetry

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   481 - 481   2011.8

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  • 21pGD-12 Pd-Pt substitution effect of the noncentrosymmetric superconductor Li_2(Pd_<1-x>Pt_x)_3B in Specific heat and AC susceptibility

    Eguchi G., Peets Darren C., Kriener Markus, Hoh K., Inada Y., Harada S., Zheng G. -q., Maeno Y.

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   481 - 481   2011.8

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  • 21aGM-1 NMR study of Sr_2VFeAsO_3 II

    Ueshima K., Zhu Xiyu, Han F, Wen Hai-Hu, Kawasaki S., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   466 - 466   2011.8

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  • 22pPSA-26 NMR study of LiFe(As,P) II

    Tsukada H., Li Z., Kawasaki S., Zheng G.-q., Deng Z., Wang X. C., Liu Q. Q., Jin C. Q.

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   561 - 561   2011.8

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  • 22pGM-4 As-NQR study of LaFeAsO_<1-x>F_x V

    Oka T., Li Z., kawasaki S., Zheng G.-q., Chen G. F., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   548 - 548   2011.8

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  • 22aPS-91 空間反転対称性の破れた超伝導体Li_2T_3B(T:Pt,Pd)の非磁性不純物効果II(22aPS 領域8ポスターセッション(低温1(遷移金属酸化物・超伝導など)),領域8(強相関系:高温超伝導,強相関f電子系など))

    包 桂芝, 石井 亮太, 稲田 佳彦, 原田 翔太, 有馬 和弘, 鄭 国慶

    日本物理学会講演概要集   66 ( 2 )   530 - 530   2011.8

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  • 24aGE-5 NQR studies of the non-centrosymmetric superconductor LaPtBi

    Matano Kazuaki, Muro Yuuji, Takabatake Toshiro, Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   637 - 637   2011.8

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  • 23aTR-2 Normal state of the topological superconductor Cu_xBi_2Se_3 : Cu, Bi, Se-NMR

    Iwase F., Li Z., Zheng G.-q., Kriener M., Segawa K., Ren Z., Ando Y.

    Meeting abstracts of the Physical Society of Japan   66 ( 2 )   690 - 690   2011.8

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  • Magnetic phase diagram of Li-2(Pd1-xPtx)(3)B by ac susceptometry (vol 84, 054521, 2011)

    D. C. Peets, G. Eguchi, M. Kriener, S. Harada, Sk Md Shamsuzzamen, Y. Inada, G. -Q. Zheng, Y. Maeno

    PHYSICAL REVIEW B   84 ( 5 )   2011.8

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  • 25pED-2 NQR studies of the non-centrosymmetric superconductor LaPtBi

    Matano Kazuaki, Muro Yuuji, Takabatake Toshiro, Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   553 - 553   2011.3

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  • 25aPS-142 In-NQR study of CeRh_<1-x>Ir_xIn_5 under pressure Department of Physics

    Sorime A., Kawasaki S., Zheng G. -q., Sarrao J. L., Pagliuso P. G., Moreno N. O., Thmpson J. D.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   547 - 547   2011.3

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  • 28pEE-4 As-NQR study of LaFeAsO_<1-x>F_x IV

    Oka T., Li Z., Kawasaki S., Zheng G.-q., Chen G. F., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   681 - 681   2011.3

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  • 28aEH-11 Specific heat and AC susceptibility of the noncentrosymmetric superconductor Li_2(Pd_<1-x>Pt_x)_3B

    Eauchi G., Peets Darren C., Kriener Markus, Hoh K., Inada Y., Harada S., Zheng G.-q., Maeno Y.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   673 - 673   2011.3

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  • 26pEJ-9 NMR study of Sr_2VFeAsO_3

    Ueshima K., Zhu Xiyu, Han F., Wen Hai-Hu, Kawasaki S., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   613 - 613   2011.3

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  • 28aHG-11 Cu-NMR study on topological superconductor Cu_xBi_2Se_3

    Iwase F., Li Z., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   728 - 728   2011.3

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  • 25pED-7 Cs-NMR study of Cs_3C_<60>

    Fukui J., Suzuki Y., Kanbe T., Kawasaki S., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   554 - 554   2011.3

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  • 26pPSA-5 The study of superconductors Li_2(Pt_xPd_<1-x>)_3B without inversion symmetry

    Harada S., SHAMSUZZAMEN Sk. Md., Inada Y., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   66 ( 1 )   619 - 619   2011.3

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  • 空間反転対称性の破れた超伝導体Li2(Pd1-xPtx)3Bの195Pt NMR

    原田翔太, 有馬和宏, HOH K., 稲田佳彦, ZHENG G.-Q.

    日本物理学会講演概要集   66 ( 2 )   2011

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  • 鉄砒素系超伝導体のNMR研究 : スピン-重項・多重等方ギャップ(鉄系高温超伝導の物理,研究会報告)

    鄭 国慶

    物性研究   96 ( 5 )   545 - 545   2011

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    Other Link： http://hdl.handle.net/2433/169594

  • 23pPSB-36 NMR study of noncentrosymmetric superconductor

    sawaoka H., harada S., Zheng G.-q., Kawashima K., Akimitsu J.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   535 - 535   2010.8

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  • 24pWH-10 As-NMR/NQR Study of Pressure-Induced Superconductivity in CaFe_2As_2

    Kawasaki S., Oka T., Tabuchi T., Wang X. F., Chen X. H., Wang X. F.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   571 - 571   2010.8

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  • 23aPS-43 As-NQR study of LaFeAsO_<1-x>F_x III

    Oka T., Li Z., Kawasaki S., Zheng G.-q., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   469 - 469   2010.8

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  • 23aPS-84 ^<51>V-NMR study of Sr_2VFeAsO_3

    Ueshima K., Zhu Xiyu, Han F, Wen Hai-Hu, Kawasaki S., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   479 - 479   2010.8

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  • 25aWB-1 The study of superconductors Li_2(Pt_xPd_<1-x>)_3B without inversion symmetry

    Harada S., SHAMSUZZAMEN Sk. Md., Inada Y., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   577 - 577   2010.8

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  • 23aPS-83 NMR study of LiFe(As,P)

    Tsukada H., Li Z., Kawasaki S., Zheng G.-q., Deng Z., Wang X. C., Liu Q. Q., Jin C. Q.

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   479 - 479   2010.8

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  • 25aWB-2 Doping evolution of Li_2(Pd_<1-x>Pt_x)_3B's H-T phase diagram and electronic specific heat

    PEETS Darren C., EGUCHI Gaku, KRIENER Markus, HARADA Shota, SHAMSUZZAMEN Sk. Md., INADA Yoshihiko, ZHENG Guo-qing, MAENO Yoshiteru

    Meeting abstracts of the Physical Society of Japan   65 ( 2 )   577 - 577   2010.8

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  • 21pHX-3 Noncentrosymmetric Superconductors

    Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   829 - 829   2010.3

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  • 20pGA-13 Evolution of Pseudogap Ground State in Single-Layered Copper-Oxide Bi_2Sr_<2-x>La_xCuO_<6+δ> Revealed by ^<63,65>Cu-Nuclear Magnetic Resonance

    Kawasaki S., Lin C. T., Kuhns P. L., Reyes A. P., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   551 - 551   2010.3

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  • 20aPS-80 NMR study of the noncentrosymmetric boron compound

    Sawaoka H., harada S., Zheng G. -q., kawashima K., akimitsu J.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   538 - 538   2010.3

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  • 22pGH-8 ^<75>As NMR studies of the hole-doped single crystal Ba_<1-x>K_xFe_2As_2 (x=0.28, 0.32)

    Li Z., Sun G. L., Sun D. L., Lin C. T., Ichioka M., Zheng G. Q.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   661 - 661   2010.3

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  • 22pGH-6 NQR study of LaNiAsO_<1-x>F_x IV

    Tabuchi T., Li Z., Kawasaki S., Zheng G. -q., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   660 - 660   2010.3

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  • 22pGH-2 As-NQR study of LaFeAsO_<1-x>F_x II

    Oka T., Li Z., Kawasaki S., Zheng G. -q., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   659 - 659   2010.3

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  • 20pGD-13 Superconducting Phase Diagram of Li_2(Pd_<1-x>Pt_x)_3B for High x

    PEETS Darren C., EGUCHI Gaku, KRIENER Markus, HARADA Shota, SHAMSUZZAMEN Sk. Md., INADA Yoshihiko, ZHENG Guo-qing, MAENO Yoshiteru

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   555 - 555   2010.3

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  • 20pGD-14 Low temperature specific heat study of the noncentrosymmetric superconductor Li_2Pt_3B

    Eguchi G., Kriener Markus, Peets Darren C., Harada S., Shamsuzzaman Sk. Md., Inada Y., Zheng G. -q., Maeno Y.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   555 - 555   2010.3

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  • 20pGD-12 The study of superconductors Li_2(Pd_<1-x>Pt_x)_3B without inversion symmetry

    Harada S., Shamsuzzaman SK. MD., Inada Y., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   65 ( 1 )   555 - 555   2010.3

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  • B-11 and Pt-195 NMR study of the superconductors Li-2(Pd1-xPtx)(3)B without inversion symmetry

    S. Harada, Y. Inada, G. -Q. Zheng

    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS   470 ( 20 )   1089 - 1091   2010

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  • NMR study of superconductors Li2(Pd1-xPtx)3B and Mg10±xIr19B16+y without inversion symmetry

    S.Harada, K. Tahara, Z. Li, J.L. Luo, Y. Inada, Guo-qing Zheng

    Physca C   470   678 - 681   2010

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  • Evolution of the superconducting transition temperature upon a substitution of Pd by Pt in Li2(Pd1-xPtx)3B (x=0-1)

    Sk Md, Shamsuzzaman, Y Inada, S Sasano, S Harada, Zheng Guo-qing

    Journal of Physics: Conference Series   200   012183-1-012183-4   2010

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  • 25aPS-125 The study of superconductors Li_2(Pt, Pd_<1-x>)_3B without inversion symmetry

    Harada S., Fukui J., Inada Y., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   444 - 444   2009.8

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  • 27pRH-8 Anisotropic spin fluctuations and multiple Superconducting gaps in hole-doped Ba_<0.72>K_<0.28>Fe_2As_2 : NMR in a single crystal

    Li Z., Matano K., Sun G. L., Sun D. L., Lin C. T., Ichioka M., Zheng G. Q.

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   546 - 546   2009.8

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  • 27pRH-14 NQR study of LaNiAsO_<1-x>F_x III

    Tabuchi T., Li Z., Kawasaki S., Zheng G. -q., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   547 - 547   2009.8

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  • 26aPS-91 As-NQR study of LaFeAsO_<1-x>F_x

    Oka T., Kawasaki S., Zheng G. -q., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   64 ( 2 )   498 - 498   2009.8

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  • 28aPS-29 Crossover in Superconducting of Li_2(Pd_<1-x>Pt_x)_3B (x=0-1)

    Shamsuzzaman Sk.Md., Sasano M., Inada Y., Harada S., Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   602 - 602   2009.3

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  • 28pTA-9 As-NQR study of LaFeAsO_<1-x>F_x

    Kawasaki S., Matano K., Shimada K., Oka T., Ooe Y., Zheng G.-q., Chen G. F., Luo J. L., Wan N. L.

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   613 - 613   2009.3

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  • 28pTA-8 As-NMR study in iron arsenide superconductor

    Matano K., Tahara K., Kawasaki S., Zheng G.-q., Ren Z. A., Dong X. L., Sun L., Zhao Z. X., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   613 - 613   2009.3

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  • 30pTD-10 NMR study in superconductor Li_2(Pt_x,Pd_<1-x>)_3B without inversion symmetry

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   666 - 666   2009.3

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  • 28aPS-4 NQR study of LaNiAsO_<1-x>F_x II

    Tabuchi T., Li Z., Kawasaki S., Zheng G.-q., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   64 ( 1 )   596 - 596   2009.3

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  • 21aQE-1 NMR in superconducting Na_xCoO_2・yH_2O single crystals V : anisotropy of the physical properties

    Matano K., Zheng G.-q., Chen D. P., Lin C. T.

    Meeting abstracts of the Physical Society of Japan   63 ( 2 )   484 - 484   2008.8

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  • 22pYA-13 Spin-singlet superconductivity with multiple gaps in PrO_<0.89>F_<0.11>FeAs

    Shimada K., Matano K., Tahara K., Kawasaki S., Zheng G.-q., Ren Z. A., Dong X. L., Sun L., Zhao Z. X.

    Meeting abstracts of the Physical Society of Japan   63 ( 2 )   563 - 563   2008.8

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  • 23pQC-2 ^<11>B-NMR study of the noncentrosymmetric superconductor Mg_<10>Ir_<19>B_<16>

    Tahara K., Zheng G.-q., Li Z., Yang H. X., Luo J. L.

    Meeting abstracts of the Physical Society of Japan   63 ( 2 )   576 - 576   2008.8

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  • 23pQE-1 NMR study on pseudogap state in single crystalline Bi_2Sr_<2-x>La_xCuO_6

    Kawasaki S., Tabuchi T., Shimada K., Zheng G.-q., Kuhns P. L., Reyes A. P., Liang B., Lin C. T.

    Meeting abstracts of the Physical Society of Japan   63 ( 2 )   578 - 578   2008.8

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  • 22pYA-12 NMR study of LaNiAsO_<1-x>F_x

    Tabuchi T., Matano K., Kawasaki S., Zheng G.-q., Li Z., Chen G. F., Luo J. L., Wang N. L.

    Meeting abstracts of the Physical Society of Japan   63 ( 2 )   563 - 563   2008.8

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  • 23pQC-3 Pt-NMR study in superconductor Li_2(Pt_xPd_<1-x>)_3B without inversion symmetry

    Harada S., Kandatsu M., Inada Y., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   63 ( 2 )   577 - 577   2008.8

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  • 26aRH-1 NMR study of pseudogap state in single crystalline Bi_2Sr_<2-x>La_xCuO_6

    Kawasaki S., Shimada K., Zheng G.-p., Kuhns P.L., Reyes A.P., Liang B., Lin C.T.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   629 - 629   2008.2

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  • 24pYB-2 NMR in superconducting Na_xCoO_2・yH_2O single crystals IV

    Matano K., Zheng G.-q., Chen D.P., Lin C.T.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   612 - 612   2008.2

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  • 23pYB-13 ^<11>B-NMR study of the noncentrosymmetric superconductor Mg_<10>Ir_<19>B_<16>

    Tahara K., Zheng G.-q., Li Z., Luo J.L.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   531 - 531   2008.2

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  • 24pYB-9 ^<59>Co-NMR/NQR study in Li_xCoO_2(x=0,0.12,0.35)

    Shimada K., Kawasaki S., Zheng G.-q., Motohashi T., Ono T., Kanno R., Karppinen M., Yamauchi H.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   613 - 613   2008.2

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  • 23pYB-9 ^<11>B-NMR study in superconductor Li_2(Pt_xPd_<1-x>)_3B without inversion symmetry

    Harada S., Kandatsu M., Inada Y., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   63 ( 1 )   530 - 530   2008.2

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  • Nuclear Spin–Lattice Relaxation in Non-centrosymmetric Superconductors Li2(Pd,Pt)3B

    Kandatsu M., Nishiyama M., Inada Y., Zheng Guo-qing

    Journal of the Physical Society of Japan   Suppl ( A )   348 - 349   2008

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    DOI： 10.1143/JPSJS.77SA.348

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  • Sb-NQR Study of PrOs4Sb12under High Pressure

    Kawasaki Shinji, Katayama Kouta, Nishiyama Masahide, Kotegawa Hisashi, C. Kobayashi Tatsuo, Sugawara Hitoshi, Kikuchi Daisuke, Sato Hideyuki, Zheng Guo-qing

    Journal of the Physical Society of Japan   77 ( Suppl. A )   330 - 332   2008

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    DOI： 10.1143/JPSJS.77SA.330

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  • LaNiAsO1-xFxのNMRによる研究

    田渕貴久, 俣野和明, 川崎慎司, ZHENG G.-q., LI Z., CHEN G.F., LUO J.L., WANG N.L.

    日本物理学会講演概要集   63 ( 2 )   2008

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  • REO1-xFxFeAsのNMRによる研究

    島田健史, 俣野和明, 田原圭介, 川崎慎司, ZHENG G.-q., REN Z.A., DONG X.L., SUN L., ZHAO Z.X.

    日本物理学会講演概要集   63 ( 2 )   2008

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  • 24aXA-1 NMR/NQR studies on the filled skutterudite compound SmRu_4P_<12> II

    Masaki S., Mito T., Wada S., Kikuchi D., Sato H., Sugawara H., Takigawa H., Takeda N., Zheng G. -q.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   653 - 653   2007.8

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  • 21pPSB-4 Sb-NQR study of PrOs_4Sb_<12> under pressure III

    Katayama K., Kawasaki S., Zheng G. -q., Kotegawa H., Kobayashi T. C., Sugawara H., Kikuchi D., Sato H.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   573 - 573   2007.8

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  • 229WH-9 NMR study in superconductor Li_2(Pt_x, Pd_<1-x>)_3B without inversion symmetry

    Kandatsu M., Harada S., Inada Y., Zheng G-q.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   608 - 608   2007.8

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  • 23pWH-2 NMR in superconducting Na_xCoO_2・_yH_O single crystals III

    Matano K., Zheng G. -q., Chen D. P., Lin C. T.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   635 - 635   2007.8

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  • 21aPS-93 ^<59>Co NQR study of Na_xCoO_2・1.3H_2O under high pressure (III)

    Kusano E., Matano K., Kawasaki S., Zheng G-q., Cmaidalka J., Meng R.L., Chu C.W.

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   538 - 538   2007.8

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  • 21aPS-129 Crossover on Li_2(Pd_<1-x>Pt_x)_3B(x=0-1) superconductor

    Sasano M., Inada Y., Harada S., Zheng Guo-qing

    Meeting abstracts of the Physical Society of Japan   62 ( 2 )   546 - 546   2007.8

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  • 18pWK-14 Superconductivity in Li_2(Pd, Pt)_3B without inversion symmetry

    Nishiyama M., Kandatsu M., Harada S., Inada Y., Zheng G-q.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   507 - 507   2007.2

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  • 18pPSA-34 Sb-NQR study of PrOs_4Sb_<12> under pressure II

    Katayama K., Kawasaki S., Nishiyama M., Zheng G-q., Sugawara H., Kikuchi D., Sato H.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   520 - 520   2007.2

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  • 18pPSA-37 NMR/NQR studies on the filled skutterudite compound NdRu_4P_<12>

    Masaki S., Mito T., Takemura M., Wada S., Kikuchi D., Sato H., Sugawara H., Takeda N., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   521 - 521   2007.2

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  • 21aWG-3 NMR in superconducting Na_xCoO_2・yH_2O single crystal s (II)

    Matano K., Zheng G.-q., Chen D. P., Lin C. T.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   640 - 640   2007.2

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  • 21aWG-4 ^<59>Co NQR study of Na_xCoO_2・1.3H_2O under high pressure (II)

    Kusano E., Kawasaki S., Nishiyama M., Zheng G-q., Cmaidalka J., Meng R.L., Chu C.W.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   640 - 640   2007.2

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  • 21aWK-3 Ru-NQR on the filled skutterudite compound SmRu_4P_<12>

    Masaki S., Mito T., Wada S., Kikuchi D., Sato H., Sugawara H., Takeda N., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   62 ( 1 )   643 - 643   2007.2

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  • NaxCoO2・1.3H2Oの高圧下59Co-NQRによる研究(III)

    草野江理, 俣野和明, 川崎慎司, ZHENG G-Q., CMAIDALKA J., MENG R. L., CHU C. W.

    日本物理学会講演概要集   62 ( 2 )   2007

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  • 23pPSA-16 NMR study of the filled skutterudite compounds RRu_4P_<12> (R=La, Nd, Sm)

    Masaki S., Mito T., Wada S., Kikuchi D., Sato H., Sugawara H., Takeda N., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   409 - 409   2006.8

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  • 24aPS-70 ^<11>B-NMR study of the superconductor Li_2(Pd,Pt)_3B2

    Nishiyama M., Zheng G.-q., Inada T.

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   456 - 456   2006.8

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  • 25pZL-4 ^<59>Co NQR study of Na_xCoO_2^*1.3H_2O under high pressure

    Kusano E., Kawasaki S., Nishiyama M., Zheng G.-q., Cmaidalka J., Meng R.L., Chu C.W.

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   503 - 503   2006.8

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  • 25pZL-8 d-wave superconductivity in Na_xCoO_2・yH_2O : evidence from Knight Shift in a single crystal

    Matano K., Zheng G.-q., Chen D.P., Lin C.T.

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   504 - 504   2006.8

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  • 25aYA-8 Sb-NQR study of PrOs_4Sb_<12> under pressure

    Katayama K., Kawasaki S., Nishiyama M., Zheng G-q., Harima H., Sugawara H., Kikuchi D., Sato H.

    Meeting abstracts of the Physical Society of Japan   61 ( 2 )   484 - 484   2006.8

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  • 30aUF-1 Na-content Dependence of Superconductivity and Antiferromagnetic fluctuations in Na_xCoO_2*yH_2O

    Matano K., Zheng G.-q., Cmaidalka J., Meng R.L., Chu G.W.

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   649 - 649   2006.3

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  • 30aUF-9 Fermi surface of Na_xCoO_2 investigated by Compton scattering

    Sakurai Y., Itou M., Laverock J., Dugdale S.B., Wooldridge J., Duffy J.A., Lees M.R., Zheng G.-q., Chen D.P., Lin C.T.

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   651 - 651   2006.3

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  • 27aPS-93 ^<11>B-NMR study of the superconductor Li_2(Pd,Pt)_3B

    Nishiyama M., Zheng G.-q., Inada T.

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   541 - 541   2006.3

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  • 28pPSA-4 ^<31>P-NMR of Sm-based Filled Skutterdite Compounds

    Masaki S., Oki N., Mito T., Wada S., Takeda N., Kikuchi D., Sato H., Sugawara H., Zheng G.-q.

    Meeting abstracts of the Physical Society of Japan   61 ( 1 )   598 - 598   2006.3

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  • 20aYG-2 ^<115>In-NQR study of CeIn_3 under pressure III

    Kawasaki S., Kitaoka Y., Mito T., Kawasaki Y., Kotegawa H., Zheng G-q., Shishido H., Araki S., Settai R., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   60 ( 2 )   420 - 420   2005.8

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  • 19pPSA-30 ^<31>P-NMR of Sm-based filled skutterdite Cmpounds

    Masaki S., Oki N., Wada S., Takeda N., Kikuchi D., Sato H., Sugawara H., Zheng G. q.

    Meeting abstracts of the Physical Society of Japan   60 ( 2 )   400 - 400   2005.8

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  • 21aXD-8 Na-content dependence of Na_xCoO_2^*yH_2O on Superconductivity and Antiferromagnetic fluctuation

    Matano K., Zheng G.-q, Cmaidalka J., Meng R. L., Chu C. W.

    Meeting abstracts of the Physical Society of Japan   60 ( 2 )   467 - 467   2005.8

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  • 25aWA-2 Coexistence of Supeconductivity and Antiferromagnetism in F-substituted Multilayered High-T_c Superconductors Cu-NMR Study

    Matoba K., Koyama K., Mukuda H., Kitaoka Y, Kotegawa H., Zheng G.-q., Jyo A., Tanaka Y.

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   512 - 512   2005.3

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  • 24pTA-5 Superconductivity in CeRhIn_5 : A study of ^<115>In-NQR under Pressure III

    Yashima M, Kawasaki S, Kitaoka Y, Zheng G-q, Aoki D, Haga Y, Onuki Y

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   495 - 495   2005.3

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  • 25pTA-2 Sb-NQR study on Pr_<1-x>La_xOs_4Sb_<12> II

    Imamura Y., Yogi M., Mukuda H., Kitaoka Y., Kotegawa H., Zheng G. -q., Sugawara H., Kikuchi D., Sato H.

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   548 - 548   2005.3

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  • 25pTA-3 Sb-Knight shift studies of the superconductor PrOs_4Sb_<12>

    Doi M., Tou H., Sera M., Yogi M., Kitaoka Y., Kotegawa H., Zheng G.-q., Harima H., Sugawara J., Sato H.

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   549 - 549   2005.3

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  • 27pTA-3 ^<31>P-NMR Measurement of Filled Skutterdite Compound SmRu_4P_<12>

    Masaki S., Mito T., Oki N., Wada S., Takeda N., Ishikawa M., Zheng G-q.

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   609 - 609   2005.3

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  • 25pTA-1 NQR study of the impurity effect on the superconductivity of Pr(Os_<1-x>Ru_x)_4Sb_<12>

    Nishiyama M., Kato T., Zheng G.-q., Harima H., Sugawara H., Sato H.

    Meeting abstracts of the Physical Society of Japan   60 ( 1 )   548 - 548   2005.3

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  • Enhancing the superconducting transition temperature of the heavy fermion compound CeIrIn5 in the absence of spin correlations

    S Kawasaki, GQ Zheng, H Kan, Y Kitaoka, H Shishido, Y Onuki

    PHYSICAL REVIEW LETTERS   94 ( 3 )   2005.1

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  • 14pPSA-36 ^<73>Ge-NMR/NQR Study of UGe_2

    Harada A, Kotegawa H, Kawasaki S, Kawasaki Y, Zheng G q, Kitaoka Y, Yamamoto E, Haga Y, Onuki Y, Itoh K, Haller E E

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   552 - 552   2004.8

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  • 13aRC-8 NQR Studies on Na_xCoO_2・yH_2O (y=0, 1.3)

    Matano K, Zheng G q., Meng R. L, Cmaidalka J, Chu C W

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   453 - 453   2004.8

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  • 14pPSA-4 Superconduct ivity in CeRhIn_5 : A study of ^<115>In-NQR under Pressure II

    Yashima M, Kawasaki S, Kitaoka Y, Zheng G q, Aoki D, Haga Y, Onuki Y

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   544 - 544   2004.8

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  • 12aRA-5 Sb-NQR Study of Pr_xLa_<1-x>Os_4Sb_<12> : Non-magnetic Impurity Effect

    Imamura Y, Yogi M, Kotegawa H, Zheng G -q, Kitaoka Y, Kikuchi D, Sugawara H, Sato H

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   415 - 415   2004.8

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  • 12aRA-4 Sb-NMR study of single crystal PrOs_4Sb_<12>

    Tou H, Doi M, Sera M, Yogi M, Kitaoka Y, Kotegawa H, Zheng G-q, Harima H, Sugawara H, Sato H

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   415 - 415   2004.8

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  • 13aRD-11 ^<115>In-NQR study of heavy fermion superconductor CeRh_<1-x>Ir_xIn_5 (x=0 9)

    Yamaoka S, Yashima M, Kawasaki S, Zheng G-q, Kitaoka Y, Sarrao J L, Shishido H, Settai R, Onuki T

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   456 - 456   2004.8

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  • 14aRD-4 A ^<63>Cu-NMR Study in 4 Layered High-T_c Superconductor Ba_2Ca_3Cu_4O_8(O_<1-y>F_y)_2

    Matoba K, Koyama K, Mukuda H, Kitaoka Y, Kotegawa H, Zheng G q, Iyo A, Tanaka Y

    Meeting abstracts of the Physical Society of Japan   59 ( 2 )   524 - 524   2004.8

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  • The microscopic coexistence of superconductivityand ferromagnetism in UGe2: Ge-73-NMR/NQR study

    H. Kotegawa, S. Kawasaki, A. Harada, Y. Kawasaki, K. Okamoto, G. -q. Zheng, Y. Kitaoka, E. Yamamoto, Y. Haga, Y. Onuki, K. M. Itoh, E. E. Haller

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   272   E27 - E28   2004.5

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  • Unconventional superconductivity and antiferromagnetic spin fluctuations in the heavy fermion compound CeCoIn5: In-115-NQR study under pressure

    M. Yashima, S. Kawasaki, Y. Kawasaki, G. -q. Zheng, Y. Kitaoka, H. Shishido, R. Settai, Y. Onuki

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS   272   E679 - E681   2004.5

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  • 29pXD-5 NMR study of CePt_3Si

    Yogi M, Zheng G-q, Kitaoka Y, Hashimoto S, Yasuda T, Settai R, Matsuda T. D, Haga Y, Onuki Y, Bauer E

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   628 - 628   2004.3

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  • 28pPSA-23 Novel phase diagram of anbferromagnetism and superconductivity in CeIn_3 and CeRhIn_5 : ^<115>In-NQR study under pressure

    Kawasaki S, Mito T, Kawasaki Y, Kotegawa H, Zheng G-q, Kitaoka Y, Aoki D, Shishido H, Araki S, Haga Y, Settai R, Onuki Y

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   607 - 607   2004.3

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  • 28aXC-3 ^<59>Co-NMR/NQR Study in Na_<0.35>CoO_2-yH_2O, II

    Fujimoto T., Zheng G-q., Kitaoka Y., Meng R. L., Chu C. W.

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   547 - 547   2004.3

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  • 28pXB-7 ^<139>La-NMR Study of a Layered Perovskite Manganite La_<2-2x>S_<1+2x>Mn_2O_7

    Shiotani Y, Zheng Quo-qing, Kitaoka Y, Sarrao J.L

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   586 - 586   2004.3

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  • 28pPSA-28 Superconductivity in CeRhIn_5 : A study of ^<115>In-NQR under Pressure

    Yashima M., Kawasaki S., Zheng G-q., Kitaoka Y., Aoki D., Haga Y., Onuki Y

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   608 - 608   2004.3

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  • 28aXD-1 ^<73>Ge-NMR/NQR Study of UGe_2

    Harada A, Kotegawa H, Kawasaki S, Kawasaki Y, Zheng G-q., Kitaoka Y, Yamamoto E, Haga Y, Onuki Y, Itoh K, Haller E. E.

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   550 - 550   2004.3

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  • 30aXE-3 Sb-NMR studies of single crystal PrOs_4Sb_<12>

    Tou H, Doi M, Sera M, Yogi M, Kotegawa H, Zheng G-q, Kitaoka Y, Harima H, Sugawara H, Sato H

    Meeting abstracts of the Physical Society of Japan   59 ( 1 )   645 - 645   2004.3

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  • Coexistence of superconductivity and antiferromagnetism in multilayered high-T-c superconductor HgBa2Ca4Cu5Oy: Cu-NMR study

    H Kotegawa, Y Tokunaga, Y Araki, GQ Zheng, Y Kitaoka, K Tokiwa, K Ito, T Watanabe, A Iyo, Y Tanaka, H Ihara

    PHYSICAL REVIEW B   69 ( 1 )   1 - 6   2004.1

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  • ^<115>In-NQR study of Celn_3 under pressure II

    Kawasaki S., Mito T., Kawasaki Y., Kotegawa H., Zheng G. q., Kitaoka Y., Shishido H., Araki S., Settai R., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   550 - 550   2003.8

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  • ^<139>La-NMR/NQR study of La_4Ru_2O_<10>

    Okita Y., Zheng G. q., Kitaoka Y., Khalifah P., Cava R. J.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   542 - 542   2003.8

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  • ^<59>Co-NMR/NQR Study of Na_<0.35>CoO_2-yH_2O

    Fujimoto T., Zheng G. q., Kitaoka Y., Meng R. L., Chu C. W.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   546 - 546   2003.8

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  • ^<115>In-NMR/NQR Study of the heavy fermion compound Ce_2RhIn_8

    Yashima M., Kawasaki Y., Kotegawa H., Zheng G. q., Kitaoka S., Shishido H., Settai R., Onuki Y., Kawasaki Y.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   552 - 552   2003.8

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  • 23aTJ-2 重い電子系超伝導体 CeIrIn_5 の圧力効果

    韓 紘己, 鄭 国慶, 川崎 慎司, 北岡 良雄, 青木 大, 芳賀 芳範, 大貫 惇睦

    日本物理学会講演概要集   58 ( 2 )   551 - 551   2003.8

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  • ^<139>La-NMR study of La_<2-2x>Sr_<1+2x>Mn_2O_7

    Shiotani Y., Kotegawa H., Zheng Guo qing, Kitaoka Y., Sarrao J.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   532 - 532   2003.8

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  • NMR Study on Coexistence of Superconductivity and Antiferromagnetism in 5 Layered High-T_c Cuprates

    Araki Y., Kotegawa H., Zheng G. q., Kitaoka Y., Tokiwa K., Watanabe T., Kito H., Iyo A., Tanaka Y., Ihara H.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   479 - 479   2003.8

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  • NMR/NQR Study of PrOs_4Sb_<12>

    Imamura Y., Kotegawa H., Yogi M., Zheng G. q., Kitaoka Y., Saha S. R., Sugawara H., Sato H.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   458 - 458   2003.8

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  • Sb-NMR study of Pr_<0.95>La_<0.05>Os_4Sb_<12>

    Imamura Y., Kotegawa H., Yogi M., Zheng G. q., Kitaoka Y., Sugawara H., Sato H.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   457 - 457   2003.8

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  • ^<73>Ge-NMR/NQR Study of URhGe

    Harada A., Kotegawa H., Zheng G. q., Kitaoka Y., Haga Y., Yamamoto E., Onuki Y., Itoh K., Haller E. E.

    Meeting abstracts of the Physical Society of Japan   58 ( 2 )   540 - 540   2003.8

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  • ^<115>In-NQR Study of the heavy fermion superconductor CeCoIn_5

    Yashima M., Kawasaki S., Kawasaki Y., Kotegawa H., Zheng G. q., Kitaoka Y., Shishido H., Haga Y., Settai R., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   480 - 480   2003.3

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  • Coexistence of magnetism and superconductivity in Ce(Rh_<1-x>Ir_x)In_5

    Yamaguchi N., Kawasaki S., Zheng G. q., Kitaoka Y., Sarrao J., Thompson J. D.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   481 - 481   2003.3

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  • 115^In-NQR Experiment of Geometrically-Frustrated Heavy-Fermion Compound, YbPtIn

    Fujimoto T., Zheng G. q., Kitaoka Y., Trovarelli O., Geibel C., Steglich F.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   585 - 585   2003.3

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  • ^<63>Cu-NMR Study of apical-oxgen-free cuprate (Ca_<1-x>Na_x)_2CuO_2Cl_2

    Sakai A., Anada T., Zheng G. q., Kitaoka Y., Azuma M., Takano M.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   527 - 527   2003.3

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  • 29pPSB-2 重い電子系超伝導体 CeIrIn_5 の圧力効果

    韓 紘己, 鄭 国慶, 川崎 慎司, 北岡 良雄, 大貫 惇睦

    日本物理学会講演概要集   58 ( 1 )   560 - 560   2003.3

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  • Coexistence of antiferromagnetism and superconductivity in CeRhIn_5 and CeIn_3

    Kawasaki S., Mito T., Kawasaki Y., Zheng G. q., Kitaoka Y., Aoki D., Haga Y., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   58 ( 1 )   480 - 480   2003.3

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  • NQR Study of PrRu_4Sb_<12>,PrOs_4Sb_<12>

    Yogi M., Kotegawa H., Imamura Y., Zheng G. -q., Kitaoka Y., Ohsaki S., Sugawara H., Sato H.

    79 ( 6 )   935 - 935   2003

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  • NMR Study on Coexsistence of Superconductivity and Ferromagnetism in 5 Layered TIBa2Ca4Cu5Oy

    Araki Y, Kotegawa H, Zheng G-q, Kitaoka Y, Kito H, Iyo A, Tanaka Y, Tokiwa K, Watanabe T, Ihara H

    Meeting abstracts of the Physical Society of Japan   57 ( 2 )   478 - 478   2002.8

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  • Magnetic order and superconductivity in heavy electron system Ce(Rh1-xIrx)In5

    Yamaguchi N., Zheng G.q., Tanabe K., Kitaoka Y., Sarrao J., Thompson J.D.

    Meeting abstracts of the Physical Society of Japan   57 ( 2 )   544 - 544   2002.8

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  • Electronic Structure in high-Tc cuprate Bi2(Sr1.9-xLax)CuO6 single crystal II

    Sakai A, Zheng G-q, Kitaoka Y, Lin C.T, Liang B

    Meeting abstracts of the Physical Society of Japan   57 ( 2 )   528 - 528   2002.8

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  • 25pwB-4 NMR/NQR Study of PrOs_4Sb_<12>

    Kotegawa H., Imamura Y., Kawasaki Y., Tokunaga Y., Ishida K., Zheng G. -q., Kitaoka, Ohsaki S., Sugawara H., Sato H.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   552 - 552   2002.3

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  • 24pPSA-16 ^<63>Cu-NMR Study of apical-oxygen-free cuprate (Ca_<1-x>Na_x)CuO_2CL_2

    Sato T., Sakai A., Anada T., Zheng G.-q., Kitaoka Y., Azuma M., Takano M.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   510 - 510   2002.3

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  • 24pWA-4 Coexistence of antiferromagnetism and superconductivity in CeRhIn_5

    Kawasaki S., Mito T., Kawasaki Y., Zheng G. -q., Kitaoka Y., Aoki D., Haga Y., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   493 - 493   2002.3

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  • 24pPSA-18 Electronic structure in high-Tc cuprate Bi_2(Sr_<1-x>La_x)2CuO_6 single crystal

    Sakai A., Zheng G.-q., Kitaoka Y., Lin C.T., Liang B.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   511 - 511   2002.3

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  • 26pWA-3 Anisotropic magnetic fluctuations and unconventional superconductivity in the new heavy fermion compounds CeTln_5 (T=Ir, Rh, Co)

    Zheng G.-q., Kitaoka

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   566 - 566   2002.3

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  • 24aPS-9 Magnetic order of heavy electron system Ce(Rh_<1-x>Ir_x)In_5

    Yamaguchi N., Zheng G.q., Tanabe K., Kitaoka Y, Sarrao J., Thompson J.D.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   475 - 475   2002.3

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  • 24pWA-6 NMR Study of CeCoIn5

    Kawasaki Y., Ishida K., Zheng G. -q., Kawasaki S., Mito T., Kitaoka Y., Shishido H., Settai R., Haga Y., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   57 ( 1 )   494 - 494   2002.3

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  • External Field Control of Spin Fluctuation in LiNiO_2

    FUJIMOTO Tatsuya, ZHENG Guo-quing, KITAOKA Yoshio, HIRANO Atsushi, KANNO Ryouji, TAKANO Mikio

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   417 - 417   2001.9

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  • In-NQR study in CeRh_xIr_<1-x>In_5

    Tanabe K., Zheng G. q., Kitaoka Y., Haga Y., Aoki D., Onuki Y., Sarrao J., Thompson J. D.

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   507 - 507   2001.9

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  • Cu-NQR Study of CeCu_2(Si_<1-x>Ge_x)_2 under Hydrostatic Pressure

    Kawasaki Y., Ishida K., Obinata K., Mito T., Zheng G. -q, Kitaoka Y., Geibel C., Steglich F.

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   505 - 505   2001.9

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  • In-NQR study of CeRhIn_5 under pressure II

    Kawasaki S., Mito T., Thessiue C., Kawasaki Y., Zheng G. -q., Ishida K., Kitaoka Y., Aoki D., Araki S., Haga Y., Settai R., Onuki Y

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   507 - 507   2001.9

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  • ^<63>Cu-NMR Study of Electron-doped Superconductor Pr_<0.9>LaCe_<0.1>CuO_4

    Sato T., Zheng G. -q., Ozaki H., Kitaoka Y., Fujita M., Yamada K.

    Meeting abstracts of the Physical Society of Japan   56 ( 2 )   489 - 489   2001.9

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  • In-NQR study of superconductivity in CeIrIn_5

    Tanabe K., Zheng G. q., Kawasaki S., Mito T., Kitaoka Y., Aoki D., Tokiwa Y., Haga Y., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   491 - 491   2001.3

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  • In-NQR study of CeRhIn_5 under pressure

    Kawasaki S., Mito T., Zheng G.-q., Ishida K., Kawasaki Y., Tanabe K., Kitaoka Y., Haga Y., Tokiwa Y., Aoki D., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   548 - 548   2001.3

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  • NQR study near the critical pressure region in CeRhIn_5

    Mito T., Kawasaki S., Zheng G. -q., Kawasaki Y., Ishida K., Kitaoka Y., Haga Y., Inada Y., Tokiwa Y., Aoki D., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   548 - 548   2001.3

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  • Comparison of magnetism, LiNiO_2 and NaNiO_2, using NMR technique

    FUJIMOTO Tatsuya, ZHENG Guo-qing, KITAOKA Yoshio, HIRANO Atsushi, MATSUMURA Tadaaki, KANNO Ryoji, TAKANO Mikio

    Meeting abstracts of the Physical Society of Japan   56 ( 1 )   395 - 395   2001.3

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  • NMR study of strongly correlated superconductors

    K. Asayama, Y. Kitaoka, G-q. Zheng, K. Ishida, Y. Tokunaga

    Annual Reports on NMR Spectroscopy   44   75 - 142   2001

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    DOI： 10.1016/s0066-4103(01)44004-x

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  • Superconducting fluctuation in High-Tc Superconductor (^<17>O NMR)

    Ozaki H., Zheng G. -q., Kitaoka Y., Kuhns P., Reyes A., Moulton W. G., Kodama Y.

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   484 - 484   2000.9

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  • Superconducting Fluctuaions and the Pseudogap in the High-T_c Superconductors revealed by ^<63>Cu NMR under Very High Magnetic Fields.

    Zheng Guo-qing, Ozaki H., Kitaoka Y., Kondo T., Shimakawa Y., Kubo Y., Clark W., Kuhns P., Reyes R., Moulton W.

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   547 - 547   2000.9

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  • In-NQR study of CeRhIn_5

    Kawasaki S., Mito T., Zheng G. -q., Ishida K., Kawasaki Y., Tanabe K., Tokunaga Y., Kitaoka Y., Haga Y., Tokiwa Y., Aoki D., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   473 - 473   2000.9

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  • In-NQR study of superconductivity in CeIrIn_5

    Tanabe K., Zheng G. -q., Kitaoka Y., Kawasaki S., Mito T., Aoki D., Tokiwa Y., Haga Y., Onuki Y.

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   473 - 473   2000.9

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  • ^7Li NMR sturdy of spin and orbital disordered triangular lattice LiNiO_2

    FUJIMOTO Tatsuya, ZHENG Guo-qing, KITAOKA Yoshio, HIRANO Atsushi, KANNO Ryoji

    Meeting abstracts of the Physical Society of Japan   55 ( 2 )   349 - 349   2000.9

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  • Magnetism and superconductivity in CeCu_2Si_2 under pressure

    Kawasaki Y., Ishida K., Mito T., Thessieu C., Zheng G. -q., Kitaoka Y., Geibel C., Steglich F.

    Meeting abstracts of the Physical Society of Japan   55 ( 1 )   433 - 433   2000.3

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  • ^<55>Mn NQR studies of properties of YMn_2 under pressure

    Ohnishi K., Zheng Guo-qing, Kawasaki Y., Mito T., Kitaoka Y., Hauser R.

    Meeting abstracts of the Physical Society of Japan   55 ( 1 )   395 - 395   2000.3

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  • NMR study of carrier distribution and superconductivity in multilayer cuprates II

    Kotegawa H., Tokunaga Y., Ishida K., Zheng G. -q, Kitaoka Y., Kito H., Iyo A., Ihara H., Tanaka K., Tokiwa K., Watanabe T.

    Meeting abstracts of the Physical Society of Japan   55 ( 1 )   496 - 496   2000.3

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  • High Magnetic Field NMR studies on Overdoped High-Tc Superconductors

    Ozaki H., Zheng G. -q., Sakai M., Kitaoka Y., Kondo T., Shimakawa Y., Kubo Y.

    Meeting abstracts of the Physical Society of Japan   55 ( 1 )   480 - 480   2000.3

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  • Spin Triplet Superconducting State due to Broken Inversion Symmetry in Li2Pt3B

    Masahide NISHIYAMA, Yoshihiko INADA, Guo-qing ZHENG

    Physical Review Letters   98   047002   2000

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  • 24pPSA-16 ^<55>Mn NQR studies of properties of Ymn_2 under pressure

    Ohnishi K, Zheng Guo-qing, Kawasaki Y, Mito T, Kitaoka Y, Hauser R.

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   350 - 350   1999.9

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  • 24pYD-3 Response of the Pseudogap to High Magnetic Field in High-Tc Superconductors:NMR study

    Zheng Guo-qing, Kitaoka Yoshio

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   479 - 479   1999.9

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  • 25pPSA-48 In-NQR study of CaIn_3 under pressure

    Kawasaki S, Thessieu C, Ishida K, Mito T, Kawasaki Y, Zheng G.-q., Kitaoka Y, Onuki Y

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   532 - 532   1999.9

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  • 27aJ-9 High Magnetic Field NMR studies on Overdoped High-Tc Superconductors

    Ozaki H, Zheng G.-q, Sakai M, Kitaoka Y, Kondo T, Shimakawa Y, Kubo Y

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   572 - 572   1999.9

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  • 27aH-8 Magnetism and superconductivity in CeCu_2Si_2 under pressure

    Kawasaki Y, Ishida K, Mito T, Thessieu C, Zheng G.-q, Kitaoka Y, Asayama K, Geibel C, Steglich F

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   569 - 569   1999.9

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  • 27aJ-10 NMR study of carrier distribution and superconductivity in multilayer cuprates

    Kotegawa H, Tokunaga Y, Ishida K, Zheng G.-q, Kitaoka Y, Asayama K, Tanaka K, Tokiwa K, Kito H, Iyo A, Ihara H

    Meeting abstracts of the Physical Society of Japan   54 ( 2 )   572 - 572   1999.9

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  • 31a-D-8 Pressure effect of Ce_<1-x>Cu_2Si_2 probed by Cu-NMR/NQR II

    Kawasaki Y., Ishida K., Mito T., Thessieu C., Zheng G.-q., Kitaoka Y., Asayama K., Geibel C., Steglich F.

    Meeting abstracts of the Physical Society of Japan   54 ( 1 )   480 - 480   1999.3

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  • 30p-E-2 ^<55>Mn-NQR/NMR Studies of the Nobel Magnetic Properties of YMn_2 under Pressure

    Ohnishi K., Zheng Guo-qing, Nishikido K., Kitaoka Y., Hauser R.

    Meeting abstracts of the Physical Society of Japan   54 ( 1 )   469 - 469   1999.3

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  • NMR study of magnetism and superconductivity in the spin ladder system under pressure III

    MITO T., MAGISHI K., MATSUMOTO S., ZHENG G-.q, KITAOKA Y., ASAYAMA K., MOTOYAMA N., EISAKI H., UCHIDA S.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   661 - 661   1998.9

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  • Pressure effect of Ce_<1-x>Cu_2Si_2 probed by Cu-NMR/NQR

    KAWASAKI Y., ISHIDA K., MITO T., ZHENG G.-Q., KITAOKA Y., ASAYAMA K., GEIBEL C., STEGLICH F.

    Meeting abstracts of the Physical Society of Japan   53 ( 2 )   560 - 560   1998.9

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  • NMR study in YNi_2B_2C

    WADA Y., ZHENG G.-q, KITAOKA Y., ASAYAMA K., TAKEYA H., NOHARA M., TAKAGI H.

    Meeting abstracts of the Physical Society of Japan   53 ( 1 )   635 - 635   1998.3

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  • NMR study of magnetism and superconductivity in the spin ladder system under pressure

    MITO T., MAGISHI K., MATSUMOTO S., ISHIDA K., ZHENG G.q., KITAOKA Y., ASAYAMA K., MOTOYAMA N., EISAKI H., UCHIDA S.

    Meeting abstracts of the Physical Society of Japan   53 ( 1 )   544 - 544   1998.3

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  • 7a-K-2 NMR study in YNi_2B_2C

    Wada Y., Zheng G.-q., Kitaoka Y., Asayama K., Takeya H., Kadowaki K.

    Meeting abstracts of the Physical Society of Japan   52 ( 2 )   646 - 646   1997.9

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  • 6a-W-6 NMR study of magnetism and supercunductivity in the spin ladder system under pressure

    Mito T., Magishi K., Matsumoto S., Zheng G-.q., Ishida K., Kitaoka Y., Asayama K., Motoyama N., Eisaki H., Uchida S.

    Meeting abstracts of the Physical Society of Japan   52 ( 2 )   628 - 628   1997.9

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  • 8a-T-10 NMR Study in HgBa_2Ca_3Cu_4O_<10+y> III

    Tokunaga Y, Magishi K., Ohsugi S, Ishida K., Zheng G-q., Kitaoka Y., Asayama K., Tokiwa K., Iyo A., Ihara H.

    Meeting abstracts of the Physical Society of Japan   52 ( 2 )   716 - 716   1997.9

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  • 31a-L-11 NQR/NMR Study in YMn_2 under High Pressure IV

    Nishikido K., Zheng G.-q., Kitaoka Y., Asayama K., Hauser R.

    Meeting abstracts of the Physical Society of Japan   52 ( 1 )   501 - 501   1997.3

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  • ^<63>Cu-NMR/NQR Study of La_<2-x>Sr_xCuO_4 Near the Antiferromagnetic Insulator Phase Boundary

    Mito T., Tanaka T., Ishida K., Zheng G.-q., Kitaoka Y., Asayama K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1996 ( 3 )   271 - 271   1996.9

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  • NQR/NMR Study in YMn_2 under High Pressure

    Nishikido K., Zheng G.-q, Kitaoka Y., Asayama K., Hauser R.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1996 ( 3 )   215 - 215   1996.9

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  • 1a-YG-3 ^63Cu-NMR/NQR Study of La_<2-x>Sr_xCuO_4 Near the Antiferromagnetic Insulator Phase Boundary

    Mito T., Tanaka T., Ishida K., Zheng G.-q, Kitaoka Y., Asayama K.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   257 - 257   1996.3

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  • 31p-YK-8 NMR study in single-crystal YNi_2B_2C

    Hashimoto K., Zheng G.-q., Kitaoka Y., Asayama K., Takeya H., Kadowaki K.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   381 - 381   1996.3

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  • 31p-YK-4 NMR Study of Spin Correlation and Superconductivity in Tl_2Ba_2Ca_2Cu_3O_<10>

    Zheng G, Kitaoka Y, Asayama K, Hamada K, Yamauchi H, Tanaka S

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   379 - 379   1996.3

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  • 1a-YG-4 NMR Study in HgBa_2Ca_2Cu_3O_<8+δ>

    Magishi K., Zheng G.-q., Kitaoka Y., .Asayama K., Tokiwa K., Iyo A., Ihara H.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   258 - 258   1996.3

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  • 1a-YE-6 NQR/NMR Study in YMn_2 under High Pressure

    Nishikido K., Zheng G-q., Kitaoka Y., Asayama K., Hauser R.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   72 - 72   1996.3

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  • 3P-YE-11 Magnetic properties of triangular lattice LiNiO_2N-Li NMR

    Wakabayashi H., Zheng G. q., Ishida K., Kitaoka Y., Asayama K., Kanno R., Yamaura K., Takano M.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   245 - 245   1996.3

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  • 1p-YC-1 Magnetic excitation and d-wave pairing in high Tc superconductivity

    Asayama K., Kitaoka Y., Zheng G.-q., Ishida K., Magishi K., Tokunaga Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   51 ( 3 )   263 - 263   1996.3

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  • 63Cu NMR probe of superconducting properties in HgBa2Ca2Cu3O8+d: A possible reason for Tc=133K

    K. Magishi, Y. Kitaoka, G. -q. Zheng, K. Asayama, K. Tokiwa, A. Iyo, H. Ihara

    PHYSICAL REVIEW B   53 ( 14 )   R8906 - R8909   1996

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  • NMR studies of high T-c superconductors

    K Asayama, Y Kitaoka, GQ Zheng, K Ishida

    PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY   28   221 - 253   1996

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  • NMR study in YNi_2B_2C

    Hashimoto K., Zheng G.-q., Kitaoka Y., Asayama K., Takeya H., Kadowaki K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1995 ( 3 )   491 - 491   1995.9

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  • NMR Study in HgBa_2Ca_2Cu_3O_<8+δ>

    Magishi K., Zheng G.-q., Kitaoka Y., Asayama K., Tokiwa K., Iyo A., Ihara H.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1995 ( 3 )   235 - 235   1995.9

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  • NQR Investigation of La_<2-x>Sr_xCuO_4 under High Pessure

    Mito T., Zheng G.-q., Kitaoka Y., Asayama K., Sera M.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1995 ( 3 )   236 - 236   1995.9

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  • NMR study of impurity effect on spin-gap bahavior in high-Tc superconductor

    Odaguchi T., Ishida K., Zheng G-q., Kitaoka Y., Asayama K., Yoshizaki R., Mochiku T., Kadowaki L.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   50 ( 3 )   244 - 244   1995.3

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  • 29a-YG-9 NMR Study of Local Hole Distribution, Spin Correlation and Superconductivity in Tl_2Ba_2Ca_2Cu_3O_<10>

    ZHENG Guo-qing, KITAOKA Yoshio, ASAYAMA Kunisuke, Hamada K., Yamauchi H., Tanaka S.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   50 ( 3 )   247 - 247   1995.3

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  • NMR Study in HgBa_2Ca_2Cu_3O_<8+δ>

    Magishi K., Zheng G.-q., Kitaoka Y., Asayama K., Tokiwa K., Ihara H.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   50 ( 3 )   248 - 248   1995.3

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  • NMR study of (Ca_<1-x>Na_x)_2CuO_2Cl_2

    Wakabayashi H., Zheng G.-q., Kitaoka Y., Asayama K., Kobayashi S., Hiroi Z., Takano M.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   50 ( 3 )   249 - 249   1995.3

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  • NQR/NMR INVESTIGATION OF HIGH Tc SUPERCONDUCTORS UNDER HIGH PRESSURE

    Mito T., Zheng G.-q., Kitaoka Y., Asayama K., Kodama Y., Sera M.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   50 ( 3 )   249 - 249   1995.3

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  • 4a-H-10 NQR/NMR INVESTIGATION OF HIGH Tc SUPERCONDUCTORS UNDER HIGH PRESSUER

    Mito T, Zheng G-q, Kitaoka Y, Asayama K, Kodama Y

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1994 ( 3 )   174 - 174   1994.8

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  • 4a-H-3 NMR Study in TlSr_2(Lu_<1-x>Ca_x)Cu_2O_y

    Magishi K, Zheng G.-q, Kitaoka Y, Asayama K, Kondo T, Shimakawa Y, Manako T, Kubo Y

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1994 ( 3 )   171 - 171   1994.8

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  • 4a-H-9 NMR study of impurity effect on spin-gap behavior in high-Tc superconductor

    Odaguchi T, Zheng G-q, Kitaoka Y, Asayama K, Kodama T, Mizuhashi K, Uchisa S, Sere M

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1994 ( 3 )   173 - 173   1994.8

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  • 4a-H-4 NMR Study of Tl_2Ba_2Ca_2Cu_3O_<10>

    Zheng G.-Q, Kitaoka Y, Asayama K, Hamada K, Yamaucni H, Tanaka S

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1994 ( 3 )   171 - 171   1994.8

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  • 28p-YL-13 NMR STUDY IN Tl_2Ba_2Ca_2Cu_3O_<10>

    Kuse T., Zheng G.-q., Kitaoka Y., Asayama K., Hamada K., Yamauchi Y., Tanaka S.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   49 ( 3 )   219 - 219   1994.3

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  • 30p-YN-7 NMR in antiferromagneic Kondo material CeCu2Ge_2 under high pressure

    Kinoshita J, Zheng G-q, Kitaoka Y, Asayama K, Onuki Y

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   49 ( 3 )   118 - 118   1994.3

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  • 29a-YE-6 NMR study of impurity effect on spin-gap behavior in YBa_2Cu_3O_y and YBa_2Cu_4O_8

    Odaguchi T, Zheng G.-q, Kitaoka Y, Asayama K, Mizuhashi K, Uchida S

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   49 ( 3 )   361 - 361   1994.3

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  • 28p-YL-11 Temperature Dependence of T_1 in the Vortex Core in YBa_2Cu_4O_8

    Zheng G.-Q, Kitaoka Y., Asayama K., Kodama Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   49 ( 3 )   218 - 218   1994.3

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  • 28p-YL-15 NMR Measurement in TlSr_2(Lu_<1-X>Ca_X)Cu_2O_γ

    Magishi K., Zheng G.-q, Kitaoka Y., Asayama K., Kondo T., Shimakawa Y., Manako T., Kubo Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   49 ( 3 )   220 - 220   1994.3

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  • 15p-R-6 NMR in antiferromagnetic Kondo material CeCu_2Ge_2 under high pressure

    Kinoshita J., Zheng G-q, Kitaoka Y., Asayama K., Onuki Y.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   170 - 170   1993.9

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  • 12a-D-1 低次元無機物質超伝導体NbSe_2の核磁気共鳴

    新野 芳浩, 鄭 国慶, 北岡 良雄, 朝山 邦輔, 大谷 槻男

    日本物理学会講演概要集. 秋の分科会   1993 ( 3 )   285 - 285   1993.9

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  • 14a-T-6 Local hole densities in high-Tc superconductors

    Zheng G.-q., Kitaoka Y., Ishida K., Asayama K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   234 - 234   1993.9

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  • 13a-W-1 Superconductivity in the lightly-doped region of La_<2-x>Sr_xCuO_4

    Ohsugi S, Kitaoka Y., Ishida K., Zheng G.-q., Asayama K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   220 - 220   1993.9

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  • 13a-W-5 NMR Measurement in TISr_2CaCu_2O_<r-δ>

    Magishi K., Zheng G.-q., Kitaoka Y., Asayama K., Kondo T., Shimakawa Y., Manako Y., Kubo Y.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   222 - 222   1993.9

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  • 13a-W-2 ^<17>O NMR Study of La_<2-x>Sr_xCuO_4

    Zheng G.-q, Kitaoka Y., Ishida K., Ohsugi S., Asayama K.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   221 - 221   1993.9

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  • 15a-T-4 NQR/NMR INVESTIGATION OF HIGH Tc SUPERCONDUCTOR(YBa_2Cu_4O_8)UNDER PRESSURE

    Mito T., G.-q. Zheng, Kitaoka Y., Asayama K., Kodama Y.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   491 - 491   1993.9

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  • 15a-T-3 NMR study of impurity effect on spin-gap behavior in YBa_2Cu_4O_8

    Odaguchi T., G.-q. Zheng, Kitaoka Y., Asayama K., Kodama Y.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting   1993 ( 3 )   490 - 490   1993.9

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  • 1a-J-12 Pressure and Impurity Effects on the Spin Dynamics in YBa_2Cu_4O_8

    Zheng G.-q., Mito T., Odaguchi T., Kitaoka Y., Asayama K., Kodama Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 3 )   370 - 370   1993.3

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  • 29p-R-12 NQR mesurement in Yb_4As_3 under high pressure

    Kinoshita J., Zheng G.-q., Kitaoka Y., Asayama K., Ochiai A., Suzuki T.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 3 )   14 - 14   1993.3

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  • 30a-B-10 ^<17>O NMR in Lightly- and heavily-doped La_<2-x>Sr_xCoO_4

    Zheng G.-q., Kuse T., Isida K., Ohsugi S., Kitaoka Y., Asayama K., Yamada Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 3 )   192 - 192   1993.3

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  • 30p-B-6 NMR Measurement in TlSr_2CaCu_2O_<7-δ>

    Magishi T., Zheng G.-q., Kitaoka Y., Asayama K., Kondo T., Shimakawa Y., Manako T., Kubota Y.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting   48 ( 3 )   196 - 196   1993.3

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  • 30a-B-11 La_<2-x>Sr_xCuO_4におけるギャップレス超伝導

    大杉 茂樹, 北岡 良雄, 鄭 国慶, 松本 真治, 石田 憲二, 朝山 邦輔

    日本物理学会講演概要集. 年会   48 ( 3 )   193 - 193   1993.3

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  • 28a-L-3 ^<17>O NMR Study of YBa_2Cu_4O_8 (3)

    ZHENG G.-q., KITAOKA Yoshio, ASAYAMA Kunisuke, KODAMA Yasuharu, YAMADA Yoshihiro

    1992 ( 3 )   199 - 199   1992.9

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  • 28a-L-2 ^<17>O NMR Study in La_<2-x>Sr_xCuO_4

    ZHENG G.-q., KITAOKA Yoshio, KUSE T, ISHIDA Kenji, ASAYAMA Kunisuke

    1992 ( 3 )   198 - 198   1992.9

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  • 28a-L-12 NMR Measurement in TlSr_2CaCu_2O_<7-δ>

    MAGISHI Kouichi, ZHENG G.-q., KITAOKA Yoshio, ASAYAMA Kunisuke, KONDO Taku, SHIMAKAWA Yuichi, MANAKO Takashi, KUBO Yoshimi

    1992 ( 3 )   203 - 203   1992.9

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  • 27p-ZM-2 NMR

    朝山 邦輔, 北岡 良雄, 鄭 国慶, 石田 憲二, 大杉 茂樹

    秋の分科会講演予稿集   1992 ( 3 )   370 - 370   1992.9

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  • 30a-ZE-9 170 NMR Study of Local Hole Desity and Spin Dynamics in YBa_2Cu_4O_8

    Zheng G.-q, Kitaoka Y, Asayama K, Kodama Y, Yamada Y

    47 ( 3 )   166 - 166   1992.3

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  • 29p-A-4 NMRから見た磁気励起

    朝山 邦輔, 北岡 良雄, 鄭 国慶, 石田 憲二, 大杉 茂樹, 藤原 賢二

    年会講演予稿集   47 ( 3 )   340 - 340   1992.3

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  • 30p-ZE-1 NMR Measurement in TISr_2CaCu_2O_7

    Magishi K, Zheng G.-q, Kitaoka Y, Asayama K, Kondo T, Shimakawa Y, Manako T, Kubo Y

    47 ( 3 )   167 - 167   1992.3

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  • NMR and NQR Study in High-T_c superconductors : II-C Neutron Scattering, NMR and NQR and Ultrasonics : II Oxide Superconductors; Experiments II : Electronic States :

    KITAOKA Yoshio, ISHIDA Kenji, ZHENG G.-Q., OHSUGI Shigeki, FUJIWARA Kenji, ASAYAMA Kunisuke

    JJAP series   7   185 - 196   1992

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  • 28p-ZC-4 Pressuer Effect of High-Tc superconductor(NQR)II

    Yanase E., Zheng G.Q., Kitaoka Y., Asayama K., Shimakawa Y., Manako T., Kubo Y.

    46 ( 3 )   169 - 169   1991.9

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  • 29p-ZC-12 NMR and NQR Study of T1Sr2CaCu207-δ

    Zheng G.Q., Magishi K., Kitaoka Y., Asayama K., Kondo T., Shimakawa Y., Manako T., Kubo Y.

    46 ( 3 )   179 - 179   1991.9

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  • 29p-ZC-7 170 NMR Study of YBa2Cu408

    Zheng G.Q., Kitaoka Y., Asayama K., Kodama Y.

    46 ( 3 )   177 - 177   1991.9

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  • 25p-Y-6 NMR and NQR in High Temperature Superconductors

    Asayama K., Kitaoka Y., Fujiwara K., Ishida K., Ohsugi S., Zheng G.

    1991 ( 3 )   173 - 175   1991.3

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  • 27p-PS-44 NQR Study of Pressure Effects in High-Tc Superconductors

    Aheng G.Z., Yanase E., Kitaoka Y., Asayama K., Nakamichi, Tanaka, Endoh S.

    1991 ( 3 )   351 - 351   1991.3

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  • 2a-TD-2 Na_<2-x>Ce_xCuO_<4-y>のNMRとEu-Ce-Ba-Cu-OのNQR

    鄭 国慶, 柳瀬 悦也, 北岡 良雄, 朝山 邦輔, 鬼頭 聖, 秋充 純

    年会講演予稿集   45 ( 3 )   326 - 326   1990.3

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  • 31p-K-3 NMR and NQR Study of High-T_c Oxide Superconductor

    Kitaoka Y., Ishida K., Fujiwara K., Zheng G-q., Kondo T., Asayama K.

    45 ( 3 )   130 - 131   1990.3

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  • 多層膜Nb-Cuにおける超伝導近接効果

    鄭 国慶, テイ コクケイ

    大阪大学低温センターだより   69   1 - 4   1990.1

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  • 3a-ZE-11 NMR Study of the Superconducting Proximity Effect in Nb-Cu Multilayers

    Zheng G.Q., Kitaoka Y., Oda Y., Asayama K., Obi Y., Fujimori H.

    1989 ( 3 )   237 - 237   1989.9

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  • 5p-B1-8 超伝導多層膜Nb-CuのNMR

    鄭 国慶, 小堀 洋, 小田 祺景, 朝山 邦輔, 青木 亮三, 小尾 俶久, 藤森 啓安

    秋の分科会講演予稿集   1988 ( 3 )   204 - 204   1988.9

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  • 27p-JG-11 超伝導多層膜Nb-CuのNMR(低温)

    鄭 国慶, 小堀 洋, 青木 亮三, 和田 信二, 小田 祺景, 朝山 邦輔

    年会講演予稿集   42 ( 3 )   233 - 233   1987.3

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  • 29a-QD-11 超伝導多層膜Nb-CuのNMR

    鄭 国慶, 小堀 洋, 和田 信二, 朝山 邦輔, 青木 亮三, 小田 祺景, 兼子 哲幸

    秋の分科会講演予稿集   1986 ( 3 )   287 - 287   1986.9

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Presentations

  • Spin-triplet topological superconductivity in K2Cr3As3 Invited International coauthorship

    2021.12.22 

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    Event date： 2021.12.22 - 2021.12.24

    Presentation type：Symposium, workshop panel (nominated)  

  • Two-component order parameter and spontaneous lattice distortion in spin-triplet superconductors CuxBi2Se3 Invited

    GUO-QING ZHENG

    Conference of Condensed Matter Physics 2025 (CCMP 2025)  2025.8.19 

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    Event date： 2025.8.17 - 2025.8.22

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  • High-temperature topological superconductivity in bulk materials: CuxBi2Se3 and K2Cr3As3 Invited

    Guo-qing Zheng

    2024.9.18 

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    Event date： 2024.9.16 - 2024.9.19

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  • CDW order and superconductivity in the Kagome compound CsV3Sb5 as seen by NMR Invited

    Guo-qing Zheng

    2024 International Workshop on the Physics of Kagome Lattice Materials  2024.8.21 

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    Event date： 2024.8.18 - 2024.8.22

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  • Charge density wave induced by high magnetic fields and uniaxial pressures in the pseudogap phase of a single-layered high-Tc cuprate Invited

    Guo-qing Zheng

    3rd International Conference on Physics under Synergetic Extreme Conditions (SECUF 2024)  2024.7.20 

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    Event date： 2024.7.19 - 2024.7.22

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  • スピン回転対称性の破れとスピン三重項超伝導の物理 Invited

    鄭国慶

    H-Physics IIワークショップ  2024.6.15 

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    Event date： 2024.6.14 - 2024.6.15

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  • NMRから見たカゴメ格子超伝導体のCDW秩序，自発内部磁場及び超伝導 Invited

    鄭国慶

    日本物理学会2024年春季大会  2024.3.21 

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    Event date： 2024.3.18 - 2024.3.21

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  • Nematic director coupled to phonon and controlled by magnetic fields in the spin-triplet superconductors CuxBi2Se3

    Guo-qing Zheng

    2023.12.26 

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    Event date： 2023.12.26 - 2023.12.28

    Language：Japanese   Presentation type：Oral presentation (general)  

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  • Tuning the nematic director in spin-triplet superconductors CuxBi2Se3 and K2Cr3As3 Invited

    Guo-qing Zheng

    Conference on Condensed Matter Physics 2023  2023.8.8 

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    Event date： 2023.8.6 - 2023.8.11

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  • High Temperature Spin-Triplet Superconductivity in K2Cr3As3 Invited

    Guo-qing Zheng

    35th International Symposium on Superconductivity  2022.11.29 

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    Event date： 2022.11.29 - 2022.12.1

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  • Spin-Triplet Topological Superconductivity in strongly-correlated and spin-orbital coupled systems

    Guo-qing Zheng

    29th International Conference on Low Temperature Physics  2022.8.22 

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    Event date： 2022.8.18 - 2022.8.24

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  • 磁場による電子対液晶状態の制御及び物性の精密測定

    鄭国慶

    新学術領域研究「量子液晶の物性科学」第2期公募研究キックオフミーティング  2022.6.17 

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    Event date： 2022.6.17 - 2022.6.18

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  • spin-triplet topological superconductivity in K2Cr3As3 Invited

    2021.12.22 

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    Event date： 2021.12.22 - 2021.12.24

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  • トポロジカル超伝導体CuxBi2Se3におけるネマチック状態ーカイラル状態転移

    鄭国慶

    京都大学基礎物理学研究所研究会 「高温超伝導・非従来型超伝導研究の最前線：多様性と普遍性」  2020.10.27 

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    Event date： 2020.10.26 - 2020.10.28

    Presentation type：Oral presentation (general)  

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  • Topological superconductivity in correlated and non-correlated electron systems Invited

    Guo-qing Zheng

    Asia Pacific Workshop on Highlights of Condensed-Matter Physics (APW2019)  2019.12.8 

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    Event date： 2019.12.6 - 2019.12.8

    Presentation type：Oral presentation (invited, special)  

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  • A2Cr3As3 における強磁性揺らぎと非従来型超伝導

    鄭国慶

    京都大学基礎物理学研究所研究会「電子相関が生み出す超伝導現象の未解決問題と新しい潮流」  2019.10 

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    Event date： 2019.10.28 - 2019.10.30

    Presentation type：Oral presentation (general)  

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  • Quantum Critical Fluctuations in a Fe-based Superconductor

    Guo-qing Zheng

    International Conference on Strongly Correlated Electron Systems  2019.9 

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    Event date： 2019.9.23 - 2019.9.28

    Presentation type：Poster presentation  

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  • Crystal-dependent d-vector direction and gap-symmetry transition in topological superconductors CuxBi2Se3

    Guo-qing Zheng

    Spectroscopy on Novel Superconductors 2019  2019.6 

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    Event date： 2019.6.16 - 2019.6.21

    Presentation type：Oral presentation (general)  

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  • Mass enhancement due to nematic quantum fluctuations in NaFe1-xCoxAs Invited

    Guo-qing Zheng

    17th Beijing Forum for High Temperature Superconductivity  2019.5 

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    Event date： 2019.5.27 - 2019.5.31

    Presentation type：Oral presentation (invited, special)  

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  • Topological spin-triplet superconducting states in bulk materials Invited

    Guo-qing Zheng

    Nature Conference on Emergence Materials and Device: Electronic Structures and Properties  2019.4 

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    Event date： 2019.4.12 - 2019.4.14

    Presentation type：Oral presentation (invited, special)  

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  • Topological spin-triplet superconducting states revealed by NMR Invited

    Guo-qing Zheng

    12th International Conference on Materials and Mechanism of High temperature superconductors (M2S 2018)  2018.8 

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    Event date： 2018.8.19 - 2018.8.24

    Presentation type：Oral presentation (invited, special)  

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  • Charge density wave in Bi2201 high-Tc superconductors Invited

    Guo-qing Zheng

    Beijing Forum for High Temperature Supercnductivity 2018  2018.5 

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    Event date： 2018.5.21 - 2018.5.25

    Presentation type：Oral presentation (invited, special)  

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  • Topological superconducting states revealed by NMR Invited

    Guo-qing Zheng

    2nd TMS-Moore Alliance Workshop  2018.1 

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    Event date： 2018.1.10 - 2018.1.14

    Presentation type：Oral presentation (invited, special)  

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  • Spin-triplet superconducting state in doped topological insulator CuxBi2Se3 and unconventional superconductivity in Rb2Cr3As3,

    The 37rd REIMEI Workshop on Frontiers of Correlated Quantum Matters and Spintronics  2017 

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  • Quest for topological superconductivity

    International workshop on Topological States and Phase Transitions in Strongly Correlated Systems  2017 

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  • Spin-rotation symmetry breaking and triplet superconducting state in the doped topological insulator CuxBi2Se3

    Spin-rotation symmetry breaking and triplet superconducting state in CuxBi2Se3  2017 

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  • Spin-rotation symmetry breaking and triplet superconducting state in the doped topological insulator CuxBi2Se3

    International School on Topological Science and Topological Matters  2017 

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  • Double superconductivity dome and orbital order/fluctuations in iron-pnictides

    International Conference on Superstripe 2016  2016 

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  • NMR evidence for spin-rotation symmetry breaking and triplet superconducting state in a doped topological insulator

    11th International Conference on Spectroscopy of Novel Superconductors (SNS2016)”  2016 

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  • Double superconductivity domes and orbital (spin) order/fluctuations in Fe-pnictides

    Beijing Forum for High Temperature Superconductivity  2016 

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  • Orbital order, fluctuations and spin nematicity in iron-pnictides as revealed by NMR

    International Workshop on High temperature superconductivity  2016 

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  • Spin rotation symmetry breaking and triplet superconducting state

    APW and CEM jointed workshop “Highlights of Modern Condensed Matter Physics”  2016 

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  • Double superconductivity dome and orbital order in iron-pnictides

    Hyperfine Interaction 2016  2016 

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  • NMR Results on topological superconductors

    Quantum Materials Symposium 2015  2015 

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  • Magnetism and superconductivity in perovskite Sr2VFeAsO3

    11th Beijing Forum on High-Temperature Superconductivity  2014 

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  • NMR studies of topological superconductors

    International Conference on Topological Quantum Materials Physics  2014 

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  • Quantum criticality in carrier-doped iron-pnictide superconductors

    Ushimado International Workshop on Physics and Chemistry of Novel Superconductors and Related Materials  2014 

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  • 磁気及びネマティック量子臨界性

    日本物理学会2014年年次大会  2014 

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  • Quantum criticality in strongly-correlated electronic materials

    mini-workshop on strongly-correlated electronic materials.  2014 

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  • Nematic and Magnetic Quantum Criticalities in Electron-Doped Fe-pnictides

    Second Beijing International Workshop on Iron-based high temperature superconductors  2014 

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  • Searching for topological superconducting states

    科研費新学術領域「トポロジカル量子」集中連携研究会  2014 

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  • “Noncentrosymmetric Superconductors: a possible route to topological superconductivity

    International conference on Surface Science  2013 

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  • Magnetic correlations and unconventional superconductivity in iron-pnictides revealed by NMR

    ICM2009  2009 

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  • inversion symmetry breaking and novel superconductivity

    CPS annual meeting  2009 

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  • Novel superconducting state due to broken inversion symmetry in Li2(Pd1-xPtx)3B and Mg10-xIr19B16+x revealed by NMR

    Novel superconducting state due to broken inversion symmetry in Li2(Pd1-xPtx)3B and Mg10-xIr19B16+x revealed by NMR  2009 

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  • NMR Study on Transition-Metal-Oxide and Fe-Pnictide Superconductors under Static and Pulsed High Magnetic-Fields

    Int. Symposium on high magnetic field research  2009 

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  • 鉄ニクタイドにおけるスピン一重項・多重ギャップ超伝導

    凝縮系物理領域横断研究会  2009 

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  • NMR Study on Strongly Correlated Electron Superconductors under Static and Pulsed Magnetic-Fields up to 48 T

    9th International Conference on Research in High Magnetic Fields (RHMF 2009)  2009 

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  • NMR studies on non-centrosymmetric superconductors Li2(Pt,Pd)3

    9th International Conference on Materials and Mechanisms of Superconductivity (M2S-IX)  2009 

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  • Comment on the PG ground state--insight from NMR at high magnetic fields

    International workshop on high temperature superconductivity  2009 

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  • Unconventional superconductivity and spin fluctuations in Fe-pnictides revealed by NMR”

    KITP International Workshop on ”Iron-based High Tc Superconductor  2009 

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  • UNCONVENTIONAL SUPERCONDUCTIVITY IN Fe-PNICTIDES REVEAELED BY NMR

    Seventh International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials  2009 

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  • 強磁場下における強相関電子系超伝導体の研究

    大阪大学極限科学研究センター年次研究会  2009 

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  • NMR study of PrFeAsO1-xFx

    JST workshop  2008 

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  • Spin-singlet superconductivity with multiple gaps in the Fe(Ni)-based superconductors

    Beijing International Conference on Iron(Nickel)-based high-Tc superconductors  2008 

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  • spin-singlet superconductivity with multiple gaps in the ReFeAsO1-xFx (Re=La,Pr) as revealed by NMR

    Hong Kong Forum of Physics “Quantum Matters and Quantum Simulations  2008 

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  • 超強磁場下における機能性材料及び生体物質のNMR/ESR による研究

    １００テスラのスピン科学  2008 

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  • d-wave superconductivity and antiferromagnetic spin correlations in the hydrated cobaltate superconductor

    International Workshop on Competing Orders, Pairing Fluctuations, and Spin Orbit Effects in Novel Unconventional Superconductors  2008 

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  • Superconductors without Spatial Inversion Symmetry: Experiments

    International Workshop on Spin Helicity and Chirality in Superconductor and Semiconductor Nanostructures  2008 

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  • NMR study of transitional-metal-oxide superconductors under static and pulsed high magnetic fields

    the Sixth International Conference on Physical Phenomena in High Magnetic Fields (PPHMF-VI)  2008 

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  • パルス磁場NMRの開発

    100T強磁場科学シンポジウム  2008 

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  • Finite Fermi surface in the zero-temperature pseudogap state of the high-Tc superconductors

    The 12th APCTP Winter Workshop on Strongly Correlated Electron Systems  2008 

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  • Ground state of the pseudogap in Bi2Sr2-xLaxCuO6

    科研費特定領域「異常量子物質」成果報告会  2008 

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  • Pairing symmetry of the cobaltate superconductor

    American Physical Society March Meeting  2008 

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  • NMR study in ReO1-xFxFeAs

    Beijing Forum on High-Tc superconductivity 2008  2008 

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  • 空間反転対称性の破れた超伝導体Li2Pt3B

    新超伝導物質探索委員会  2007 

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  • Spin-triplet superconducting state in Li2Pt3B due to broken inversion symmetry

    4特定領域合同研究会  2007 

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  • Cooper-pair symmetry and spin correlations in the cobalt-oxide superconductors NaxCoO2&middot;1.3H2O

    International Conference on strongly correlated electron systems (SCES07)  2007 

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  • Cooper-pair symmetry and spin correlations in the cobaltate superconductors NaxCoO2*1.3H2O

    71th Annual Meeting of the Deutsche Physikalische Gesellschaft and DPG - spring meeting of the Division Condensed Matter, Internal Symposium, March 26-30, 2007,  2007 

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  • 空間反転対称性を有しないLi２(Pd、Pt)２Bの超伝導

    日本物理学会 ２００７年春季大会  2007 

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  • Spin-Triplet Superconducting State in Non-centrosymmetric Li2Pt3B.

    International Workshop “Beijing Forum on High-Tc Superconductivity 07”  2007 

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  • 遷移金属酸化物超伝導体の強磁場ＮＭＲ

    科研費特定領域”１００テスラ領域の強磁場スピン科学”シンポジウム  2007 

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  • Spin Triplet Superconducting State in Non-centrosymmetric Compound Li2Pt3B

    invited seminar  2007 

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  • Evidence for point nodes in the gap function of PrOs4Sb12: NQR studies under pressure

    International Conference on Strongly Correlated Electron Systems (SCES07)  2007 

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  • NMR Study of Transitiona-Metal-Oxide Superconductors under Static and Pulsed High Magnetic Fields

    4th International Symposium on High Magnetic Field Spin Science in 100T  2007 

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  • Spin-Triplet Superconducting State in Noncentrosymmetric Li2Pt3B Revealed by NMR

    New Quantum Phenomena in Skutterudite and Related Systems  2007 

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  • Strongly Correlated Electron superconductors: NMR view

    NSFC-JSPS jointed conference on Novel Quantum Phenomena in Strongly Correlated Electronic Systems  2007 

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  • Magnetic-field induced ferromagnetism as the origin for the colossal magneto-resistance in La1:2Sr1:8Mn2O7

    17th Int Conf. On Magnetism  2006 

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  • d-wave superconductivity in NaxCoO2*1.3H2O

    International Workshop “Beijing Forum on High-Tc Superconductivity 06”  2006 

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  • 超強磁場下における機能性材料および生体物質のNMR/ESR法による研究

    第2回強磁場シンポジウム  2006 

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  • Cooper-pairs symmetry and electron correlations in the cobalt-oxide superconductors NaxCoO2 *1.3H2O revealed by NMR/NQR

    International Workshop on Self-organized Strongly Correlated Electron Systems  2006 

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  • コバルト酸化物超伝導体のNMRとコンプトン散乱

    放射光科学ワークショップ  2006 

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  • Effect of In-plane and out-of-plane disorders on the pseudogap and superconductivity in the cuprates:insights from NMR

    International Workshop on Electronic States and Disorder Effect in Cuprate Superconductors  2006 

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  • PrOs4Sb12の超伝導に対する不純物効果（Osサイト置換効果のNQRによる研究）

    文部科学省科研費特定領域研究会  2005 

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  • Coexistence of Pseudogap and Superconducting States in Copper-oxides

    ICAM International Workshop on NMR/EPR of Correlated Electron Superconductors  2005 

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  • 超強磁場下における機能性材料および生体物質のNMR/ESR法による研究

    文部科学省科学研究費特定領域”100テスラ領域の強磁場スピン科学”第１回シンポジウム  2005 

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  • Delocalized Quasiparticles in the vortex state of d-wave superconductors probed by NMR

    京都大学基研研究会「異方的超伝導の統一的理解に向けて」  2005 

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  • Evidence for the nodes in the superconducting energy gap function of the Skutterdite compound PrOs4Sb12

    International Conference on Strongly Correlated Electron Systems  2005 

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  • Pr 系超伝導の対称性（NMR）

    文部科学省科研費特定領域研究会「希土類充填スクッテルダイトの特異な物性と電子状態」  2005 

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  • Fermi Arc and the Pseudogap in high-Tc superconducting cuprates

    3rd Beijing Forum on high temperature superconductivity  2005 

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  • Na content dependence of superconductivity and the antiferromagnetic correlations in Cobalt Oxide NaxCoO2*yH2O

    4th Asia-Pacific Workshop on Strongly Correlated Electron Systems: Novel Quantum Phenomen in Emergent Materials  2005 

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  • 単結晶PrOs4Sb12のSb-NMRによる研究

    日本物理学会第59回年次大会  2004 

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  • 頂点酸素の無い銅酸化物超伝導体Ca2-xNaxCuO2Cl2における63Cu-NMR

    日本物理学会第59回年次大会  2004 

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  • NMRから見たホールドープ及び電子ドープ高温超伝導体の電子相図

    日本物理学会第５９回年会  2004 

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  • 重い電子系超伝導体CeRh1-xIrxIn5(x=0.75, 0.9)のIn-NQR

    日本物理学会秋季大会  2004 

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  • CeIn3及びCeRhIn5の圧力相図：115In-NQRによる研究

    日本物理学会第59回年次大会  2004 

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  • NaxCoO2-yH2Oの59Co-NMR/NQRによる研究II

    日本物理学会第59回年次大会  2004 

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  • UGe2の73Ge-NMR/NQRによる研究

    日本物理学会秋季大会  2004 

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  • CeRhIn5の超伝導:圧力下115In- NQRによる研究II

    日本物理学会秋季大会  2004 

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  • NaxCoO2*yH2O (y=0, 1.3)のNQRによる研究

    日本物理学会秋季大会  2004 

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  • PrxLa1-xOs4Sb12のSb-NQRによる超伝導の研究

    日本物理学会秋季大会  2004 

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  • CePt3SiのNMRによる研究

    日本物理学会第59回年次大会  2004 

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  • 139La-NMRによるLa2-2xSr1+2xMn2O7の研究

    日本物理学会第59回年次大会  2004 

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  • 重い電子系反強磁性・圧力誘起超伝導体Ce2RhIn8の圧力下NQRによる研究

    日本物理学会第59回年次大会  2004 

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  • UGe2の73Ge-NMR/NQRによる研究

    日本物理学会第59回年次大会  2004 

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  • 単結晶PrOs4Sb12の角度分解Sb-NMRによる研究

    日本物理学会秋季大会  2004 

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  • Microscopic Coexistence of Unconventional Superconductivity and Magnetism in Heavy Fermion Compounds

    International Workshop on “Emerging Issues in Heavy Fermion Materials Physics”  2004 

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  • Unconventional Superconductivity and Electron Correlations in Co-Oxides from NQR/NMR

    7th International Conference on Spectroscopy in Novel Superconductors  2004 

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  • 重い電子系超伝導体CeCoIn5のNQR/NMRによる研究

    日本物理学会 第58回年次大会  2003 

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  • CeIn3の圧力下115In-NQRによる研究Ⅱ

    日本物理学会 2003年秋季大会  2003 

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  • PrOs4Sb12のSb-NMRによる研究

    日本物理学会 2003年秋季大会  2003 

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  • NaxCoO2・yH2Oの59Co-NMR/NQRによる研究

    日本物理学会秋季大会  2003 

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  • 139La-NMR/NQRによるLa4Ru2O10の研究

    日本物理学会秋季大会  2003 

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  • 重い電子系反強磁性・圧力誘起超伝導体Ce2RhIn8の115In-NQRによる研究

    日本物理学会 2003年秋季大会  2003 

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  • 重い電子系超伝導体CeIrIn5の圧力効果(NQR)

    日本物理学会 2003年秋季大会  2003 

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  • URhGeの73Ge-NMR/NQRによる研究

    日本物理学会秋季大会  2003 

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  • UGe2の73Ge-NMR/NQRによる研究Ⅲ

    日本物理学会秋季大会  2003 

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  • 幾何学的フラストレーションを示す重い電子系YbPtInの115In-NQRによる研究

    日本物理学会 第58回年次大会  2003 

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  • CeOs4Sb12のSb-NQRによる研究

    日本物理学会 第58回年次大会  2003 

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  • 重い電子系超伝導体CeIrIn5の圧力効果(NQR)

    日本物理学会 第58回年次大会  2003 

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  • UGe2の73Ge-NMR/NQRによる研究II

    日本物理学会 第58回年次大会  2003 

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  • 五層系銅酸化物高温超伝導体における超伝導と反強磁性の共存についてのNMRによる研究

    日本物理学会秋季大会  2003 

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  • PrRu4P12の31P-NMRによる研究

    日本物理学会秋季大会  2003 

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  • Pr0.95La0.05Os4Sb12のSb-NQRによる超伝導の研究

    日本物理学会秋季大会  2003 

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  • d-wave superconductivity and Fermi Liquid State in Electron-doped Cuprate Pr0.91Ce0.09CuO4

    7th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors  2003 

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  • 139La-NMRによるLa2-2xSr1+2xMn2O7の研究

    日本物理学会秋季大会  2003 

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  • 頂点酸素を含まない銅酸化物高温超伝導体(Ca1-xNax)2CuO2Cl2の63Cu-NMR

    日本物理学会 第58回年次大会  2003 

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  • CeRhIn5 の圧力下115In-NQRによる研究IV

    日本物理学会 第58回年次大会  2003 

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  • Microscopic Coexistence of Unconventional Superconductivity and Antiferromagnetic Order in Ce(Rh,Ir)In5

    2nd International Symposium on Orbital Ordering and Fluctuations in d- and f-electron Systems  2003 

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  • d-wave superconductivity develops out of Fermi liquid state in electron-doped cuprates

    4th International Conference on New Discoveries, Theories and Applications of Superconductivity  2003 

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  • Ce(Rh1-xIrx)In5における磁性と超伝導の共存

    日本物理学会 第58回年次大会  2003 

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  • CeIn3の圧力下115In-NQRによる研究

    日本物理学会 2002年秋季大会  2002 

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  • 重い電子系Ce(Rh1-xIrx)In5の磁気秩序及び超伝導

    日本物理学会 2002年秋季大会  2002 

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  • 単層Bi系高温超伝導体Bi2Sr1.9-xLaxCuO6の電子状態Ⅱ(単結晶のNMR)

    日本物理学会 2002年秋季大会  2002 

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  • 5層系TlBa2Ca4Cu5Oyにおける超伝導と反強磁性の共存についてのNMRによる研究

    日本物理学会 2002年秋季大会  2002 

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  • Quasi two-dimensional Magnetic Fluctuations and unconventional Superconductivity in CeIrIn5

    International Workshop on Outstanding Issues of Unconventional Superconductivity and Magnetism in CeMIn5  2002 

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  • CeCoIn5 の NMR/NQR

    日本物理学会 第57回年次大会  2002 

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  • CeRhIn5の圧力下In-NQRによる研究III

    日本物理学会 第57回年次大会  2002 

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  • 頂点酸素を含まない酸化物超伝導体(Ca1-xNax)2CuO2Cl2のNMR

    日本物理学会 第57回年次大会  2002 

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  • 単層Bi系高温超伝導体Bi2(Sr1-xLax)2CuO66 (x=0，0.4)の電子状態（単結晶のNMR）

    日本物理学会第57回年次大会  2002 

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  • NQR Studies of Superconductivity and Magnetism of Ce(Rh,Ir,Co)In5 under Pressure

    23rd International Conference on Low Temperature Physics  2002 

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  • Coexistence of superconductivity and magnetism in Ce115 componds

    International Conference on Strongly Correlated Electron Systems  2002 

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  • CeTIn5(T=Rh，Ir，Co)のスピン揺らぎと超伝導

    日本物理学会第57回年次大会  2002 

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  • Characterizing the Pseudogap in the High-Tc Cuprates using High Magnetic Fields

    3rd International Conference on New Theories, Discoveries, and Applications of Superconductors and Related Materials (New3SC-3)  2001 

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  • CeRhIn5の圧力下In-NQRによる研究Ⅱ

    日本物理学会 2001年秋季大会  2001 

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  • CeIrIn5及び関連物質のNQR---raising TC---

    日本物理学会 2001年秋季大会  2001 

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  • CeCoIn5 の NMR/NQR

    日本物理学会 2001年秋季大会  2001 

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  • CeCu2(Si1-xGex)2 の Cu NQR とその圧力効果

    日本物理学会 第56回年次大会  2001 

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  • 重い電子系超伝導体CeIrIn5の高圧下におけるNQR

    日本物理学会 第56回年次大会  2001 

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  • Orders and Fluctuations in High-Tc and Heavy Fermion Superconductors

    International Workshop on the Mechanism of High-Tc Superconductivity  2001 

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  • 圧力誘起超伝導体CeRhIn5の臨界領域における高圧下NQR

    日本物理学会 第56回年次大会  2001 

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  • Tl2Ru2O7-δの磁性と伝導性(203、205Tl-NMR)

    日本物理学会 第56回年次大会  2001 

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  • 電子ドープ高温超伝導体Pr0.9LaCe0.1CuO4のNMRによる研究

    日本物理学会 第56回年次大会  2001 

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  • CeCu2(Si1-xGex)2 の Cu NQR とその圧力効果

    日本物理学会 2001年秋季大会  2001 

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  • 電子ドープ高温超伝導Pr0.9LaCe0.1CuO4のNMRII

    日本物理学会 2001年秋季大会  2001 

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  • 外部磁場がLiNiO2のスピン揺らぎに与える影響(7Li-NMR)

    日本物理学会 2001年秋季大会  2001 

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  • 63Cu and 17O NMR Studies of High-Tc Superconductors under High Magnetic Fields up to 42 T

    Ampere Colloque 2001---High Magnetic Field NMR Studies in Condensed Matter Physics,  2001 

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  • Effect of High Magnetic Fields on the pseudogap and d-wave Superconductivity in High-Tc Cuprates

    6th International Conference on the Materials and Mechanisms of Superconductivity and High Tc Superconductors (M2S-VI)  2000 

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  • 強磁場下における過剰ﾄﾞｰﾌﾟ高温超伝導体のNMR Ⅱ

    日本物理学会 2000年 春の分科会  2000 

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  • 新しいCe系重い電子超伝導体のNQR

    日本物理学会 第55回年次大会  2000 

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  • 高温超伝導体における超伝導ゆらぎ(17O NMR)

    日本物理学会 第55回年次大会  2000 

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  • 多層型高温超伝導体のキャリアー分布と超伝導のNMRによる研究Ⅱ

    日本物理学会 2000年 春の分科会  2000 

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  • Ce系化合物の磁気秩序の圧力効果

    日本物理学会 2000年 春の分科会  2000 

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  • Factors controling the Transition Temperature Tc in Copper-Oxide Superconductors: Local Hole Distribution and Crystal Order

    6th International Workshop on Chemical Designing and Processing of High-Tc Superconductors /Discussion Meeting on Deca-Nanoscopic Materials Science  2000 

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  • 超伝導ゆらぎ，擬ギャップ及び相図(強磁場Cu-NMR)

    日本物理学会 第55回年次大会  2000 

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  • 高圧下における CeCu2Si2 の磁性と超伝導

    日本物理学会 第55回年次大会  2000 

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  • CeRhIn5のIn-NQRによる研究

    日本物理学会 第55回年次大会  2000 

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  • 高圧下におけるCe1+xCu2+ySi2の磁性と超伝導

    日本物理学会 2000年 春の分科会  2000 

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  • 強磁場下のNMR

    日本物理学会 1999年 秋の分科会  1999 

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  • Response of the Pseudogap to High Magnetic Fields in the Underdoped High-Tc Superconductor YBa2Cu4O8

    2nd International Conference on New Discoveries, Theories and Applications  1999 

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  • 強磁場下における過剰ドープ高温超伝導体のNMR

    日本物理学会 1999年 秋の分科会  1999 

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  • 高圧下における CeCu2Si2 の磁性と超伝導

    日本物理学会 1999年 秋の分科会  1999 

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  • CeIn3:115In NQR results under pressure

    日本物理学会 1999年 秋の分科会  1999 

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Research Projects

  • Magnetic-field tuning of nematic superconductivity and precise measurements

    Grant number：22H04482  2022.04 - 2024.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    鄭 国慶

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    Grant amount：\5850000 （ Direct expense: \4500000 、 Indirect expense：\1350000 ）

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  • Physics of Spin-triplet superconductivity

    Grant number：19H00657  2019.04 - 2023.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

    鄭 国慶, 俣野 和明, 川崎 慎司, 市岡 優典

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    Grant amount：\44590000 （ Direct expense: \34300000 、 Indirect expense：\10290000 ）

    ２０１９年度において、以下の成果を得た。
    １）遷移金属Crを含む化合物A2Cr3As3（A=Na,K,Rb）において、超伝導ギャップに普遍的に点状のノード（ギャップがゼロ）が存在することを明らかにした。また、この物質群が強磁性量子臨界点付近に位置し、量子臨界点への距離はアルカリ金属Aの半径によって制御できることを発見した。Aの半径が大きいほど、A-Cr-Aのボンド角が９０度に近づき、強磁性相互作用を増大させることを指摘した。これらの結果はA2Cr3As3が超流動ヘリウムの固体版であることを示唆している。
    ２）トポロジカル絶縁体Bi2Se3にCuをドープする単結晶を作製し、Cu濃度が広範囲にわたる高品質な超伝導試料を得た。Se-NMRを測定した結果、Cu濃度が類似した試料において、スピン三重項超伝導を記述するdベクトルが９０度異なることがあるのを発見した。この結果は、dベクトルは局所的なひずみによってピン止めされることを示唆する。また、Cu濃度が0.4を超えると、超伝導ギャップが異方的（nematic）なものから等方的なものに変わることを発見した。これは、高ドープ域ではカイラル超伝導状態が実現している可能性が高いことを示すものである。
    3）空間反転対称性の破れた超伝導体TaRh2B2を作製し、NMR測定を行った。その結果、非従来型超伝導状態が実現していること、常伝導状態では電子相関の強いことが明らかになった。
    ４）非磁性不純物効果と超伝導ギャップ対称性の対応関係を理論的に明らかにした。

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  • NMR study on novel superconductivity in materials with special structures

    Grant number：16H04016  2016.04 - 2019.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    Zheng Guo-qing

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    Grant amount：\17810000 （ Direct expense: \13700000 、 Indirect expense：\4110000 ）

    The purpose of this project is to search for novel superconducting state in materials with triangular or hexagonal lattices. Some of the materials we studied lack spatial inversion center, and thus anti-symmetric spin-orbit coupling is enhanced which can induce spin-triplet superconducting state. Others have van Hove singularity in the electronic band structure which is favored by unconventional superconducting states. We performed nuclear magnetic resonance (NMR) measurements to study the temperature, magnetic-field, and crystal axis dependence of the spin-lattice relaxation rate and Knight shift. Through these measurements, we have revealed the exotic properties of several materials.

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  • Topological phases of strongly correlated materials

    Grant number：15H05852  2015.06 - 2020.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Mano Yoshiteru

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    Grant amount：\305370000 （ Direct expense: \234900000 、 Indirect expense：\70470000 ）

    In this research project, we have investigated phenomena characterized by topological quantum states among superconductors, magnetic insulators, and semimetals. As a remarkable achievement, we obtained a strong evidence to ensure the existence of Majorana quasi-particles, which are fractional states of electrons, for the first time in the world in a magnetic insulator. This is done by observing the half-integer quantization of the thermal Hall coefficient in the quantum spin liquid state of a ruthenium compound. In addition, from the development of topological materials, we discovered the first nematic superconductivity, the first superconductivity in antiperovskite oxides, and superconductivity in the line-nodal semimetals. We also deepened our knowledge on topological superconductors that break the time-reversal symmetry.

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  • NMR study on unconventional superconductivity and novel quantum phenomena in strongly correlated electron systems under extreme condition

    Grant number：25400374  2013.04 - 2016.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Kawasaki Shinji, ZHENG Guo-qing

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    Grant amount：\4810000 （ Direct expense: \3700000 、 Indirect expense：\1110000 ）

    (1)NMR study of Sr2VFeAsO3 under high pressure; In iron based high temperature superconductor Sr2VFeAsO3, we found an antiferromagnetic order above Tc and obtained novel pressure-temperature phase diagram of superconductivity and antiferromagnetism. (2)High temperature NMR study in SrPt2As2 superconductor; We found multiple charge density wave orders in SrPt2As2, which coexist with superconductivity by NMR measurement up to 600K. (3)High pressure NQR and resistivity measurements on CeRhIrIn5; We found that a unconventional superconducting state is induced near the antiferromgnetic quantum critical point in CeRhInIn5. (4)NMR study in Ce1-xLaxFeAs2; We found electron doping enhanced antiferromagnetism and its coexistence with high temperature superconductivity in Ce1-xLaxFeAs2. (5) High field NMR study in high Tc cuprate; By applying high magnetic field up to 45T, we found a CDW order is induced after suppressing superconductivity in underdoped cuprate.

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  • Topological Quantum Phenomena in Condensed Matter with Broken Symmetries (Administration)

    Grant number：22103001  2010.04 - 2016.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    MAENO Yoshiteru, TANAKA Yukio, ISHIKAWA Osamu, ZHENG Guo-qing, KASHIWAYA Satoshi, ASANO Yasuhiro, NOMURA Ryuji, ANDO Yoichi, SATO Masatoshi, UEDA Masahito

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    Grant amount：\73970000 （ Direct expense: \56900000 、 Indirect expense：\17070000 ）

    平成27年度は研究成果とりまとめにあたり、主に次の二点を行った。
    <BR>
    第一に、領域活動によるこれまでの研究成果を事後評価報告書にまとめ上げ、文科省でのヒアリングを経て事後評価を受けた。結果は評価A+をいただいた。総合所見において、「本研究領域は世界をリードする多くの研究成果を生み出し、当該学問分野における我が国の国際的優位性の確保と、その向上に大きく貢献した。また、積極的にアウトリーチ活動が実施されたことは、物性物理学における新しい概念の普及という点で高く評価できる。本研究領域の活動によって、多くの若手研究者が育成されたと認められる。」との評価をいただいた。報告書作成に際しては、領域メンバーからの成果情報を収集・集積して、発表論文、招待講演、受賞などに含まれる研究成果内容の分析を加えたうえで、今後の展望も含めた。また、新学術プロジェクトならではの、異なる専門分野研究者間の連携による研究成果・論文成果、5回開催(そのうち2回は国際会議として開催)した領域研究会の成果、17回開催した「集中連携研究会」の成果、若手育成のための若手国際会議や若手相互滞在プログラムの成果、市民講座や出前講義の成果の分析も行った。
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    第二に、本領域の研究活動から生み出されたトポロジカル量子現象に関する新学術領域をさらに発展させるための活動を行った。まず、引き続き領域のHP と事務局を維持し、研究成果情報の収集と公開に務めるとともに、トポロジカル量子現象の研究に関わる研究者に対しての情報ソース・フォーラムとしての機能も果たし続けた。幸い、後継新学術領域プロジェクト「トポロジーが紡ぐトポロジカル物質科学のフロンティア」が採択されたので、さらに飛躍的な発展を生むために必要な引き継ぎ活動を行った。

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  • Novel phenomena in electronic fluids with broken inversion symmetry

    Grant number：22103004  2010.04 - 2015.03

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    ZHENG Guo-qing, UENO Kazunori, SEGAWA Kouji, NOJIMA Tsutomu, INADA Yoshihiko, SHISHIDOU Tatsuya, ANDO Yoichi, NAGAOSA Naoto, IWASA Yoshihiro, HANAGURI Tetsuo, OSADA Toshihito, MATANO Kazuaki, YOKOYA Takayoshi

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    Grant amount：\246870000 （ Direct expense: \189900000 、 Indirect expense：\56970000 ）

    In the electronic fluids with broken inversion symmetry and strong spin-orbit coupling, we have investigated various topological quantum phenomena and obtained the following results. In noncentrosymmetric superconductors, we clarified the conditions necessary for bringing about a large spin-triplet component. We have succeeded in synthesizing new topological insulators and found that CuxBi2Se3 is a spin-triplet superconductor. We discovered electric-field-effect induced superconductivity in KTaO3 which cannot be made superconducting by conventional chemical doping method.

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  • NMR study of unconventional superconductivity in strongly correlated electron systems

    Grant number：22740232  2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    KAWASAKI Shinji, ZHENG Guo-qing

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    Grant amount：\4290000 （ Direct expense: \3300000 、 Indirect expense：\990000 ）

    1. NMR study of high-Tccuprate in very high magnetic field; by applying high magnetic field of 45 T, we revealed the pseudogap ground state for high Tc cuprate after suppressing superconductivity for the first time.
    2. NMR study of magnetism and superconductivity in iron-pnictide superconductors; we found the phase diagram of iron-pnictide superconductor is similar with high-Tccuprate indicating that magnetism helps to raise Tcin iron-pnictide as well as cuprate.

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  • Novel Physics of non-centrosymmetric superconductors

    Grant number：20244058  2008 - 2011

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

    ZHENG Guo-qing, INADA Yoshihiko, KAWASAKI Shinji, ICHIOKA Masanori, SAKURAI Yoshiharu

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    Grant amount：\47320000 （ Direct expense: \36400000 、 Indirect expense：\10920000 ）

    We have grown polycrystal samples of non-centrosymmetric superconductors Li_2(Pt_<1-x> Pd_x)_3B and studied the evolution of the superconducting state by NMR. We found that the superconducting state changes abruptly at x~ 0. 8. By analyzing the crystal structure, we found that the Pt(Pd) B_6 tilts abruptly beyond x~ 0. 8, which enhances the spin-orbit coupling and is responsible for the change in the superconducting state properties. We have also studied other non-centrosymmetric superconductors such as Mg_10Ir_19B_16 and Re_7B_3. The results also suggest that the local structure distortion is effective in enhancing the degree of inversion symmetry-breaking.

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  • Electrochemical oxidation and electronic structure of transition-metal dioxides

    Grant number：19740201  2007 - 2008

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

    MOTOHASHI Teruki, YAMAUCHI Hisao, KARPPINEN Maarit, KANNO Kanno, ZHENG Guo-qing

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    Grant amount：\3340000 （ Direct expense: \3100000 、 Indirect expense：\240000 ）

    本研究では、電子相関効果やスピンフラストレーション効果が期待される層状遷移金属二酸化物の電気化学的強酸化合成とその電子構造の解明を目的とした。特に、巨大熱起電力や超伝導の発見により注目を集めている層状コバルト酸化物の一種であるLixCoO2系について、Li量 (x) を幅広く制御した高品質試料の合成と物性評価を行い、Li量 (x) をパラメータとする電子状態図を構築した。

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  • Management of High Magnetic Field Spin Science in 100 T

    Grant number：17072001  2005 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Priority Areas  Grant-in-Aid for Scientific Research on Priority Areas

    NOJIRI Hiroyuki, ZHENG Gou-qing, KOBAYASHI Norio, KINDO Koichi, TAKAMASU Tadashi, KIDO Giyuu

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    Grant amount：\32800000 （ Direct expense: \32800000 ）

    The project have achieved the world leading progress in three main areas ; (1)spin-control of electronic state, (2)investigation of mechanisms and functions of various magnetic field induced states and (3)spin-probe of electronic state. The development of advanced and precise instrumentations in pulsed high magnetic fields has opened new developing research areas and lead to the establishment of the high magnetic field spin science in 100 T.

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  • NMR and ESR study of functional materials and biological substances under ultra-high magnetic fields

    Grant number：17072005  2005 - 2009

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research on Priority Areas  Grant-in-Aid for Scientific Research on Priority Areas

    ZHENG Guo-qing, HAGIWARA Masayuki, GOTO Takayuki, OTA Hitoshi, KUMAGAI Kenichi

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    Grant amount：\104300000 （ Direct expense: \104300000 ）

    The purpose of this project is to develop NMR and ESR techniques for scientific research at pulsed high magnetic fields. We have succeeded, for the first time in the world, in obtaining NMR spectra at pulsed magnetic fields up to 48 T by the spin-echo method. By conducting NMR measurements at static magnetic fields, we were able to reveal the ground state of the high-Tc superconductors, the Magnon excitation of quantum spin system NH_4CuCl_3 and the FFLO state in CeCoIn_5 superconductor. We performed ESR measurements at pulsed fields up to 70 T and studied the magnetic excitations in quantum magnets such as NDMAP, BaCoV_2O_8, Pb_2V_3O_9 and geometrically frustrated magnets NiGa_2S_4 and CuCrO_2, as well as the crystal field effect in Mn-based Myoglobin protein.

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  • NMR STUDY OF THE COEXISTENCE OF MAGNETISM AND SUPERCONDUCTIVITY IN STRONGLY CORRELATED ELECTRON SYSTEM

    Grant number：16340104  2004 - 2005

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    GUO-QING Zheng

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    Grant amount：\16500000 （ Direct expense: \16500000 ）

    In this project we have investigated the interplay between magnetism and superconductivity in strongly correlated electron systems using the NMR/NQR technique.
    In the heavy fermion compounds, Ce(Rh_<1-x>Ir_x)In_5, the obtained results provide strong evidence for the microscopic coexistence of antiferromagnetic order and superconductivity in the range of 0.35<x<0.55. Specifically, for x=0.5, T_N is observed at 3 K with a subsequent onset of superconductivity at T_c =0.9 K. T_c reaches a maximum of 0.94 K at x=0.45 where T_N is found to be the highest (〜4.0 K). The nuclear spin-lattice relaxation rate 1/T_1 shows a broad peak at T_N and follows a T^3 variation below T_c, the latter property indicating unconventional SC as in CeIrIn5 (T_c=0.4 K).
    In contrast, in the organic system (TMTSF) _2PF_6, magnetism and superconductivity are macroscopically phase separated.
    In the Copper-oxide superconductors Bi_2Sr_<2-x>La_xCuO_6 (x=0.65,0.40,0.25,0.15,and 0), we applied strong magnetic fields up to 43 T to suppress superconductivity and investigated the low temperature normal state. We find that the pseudogap (PG) and the superconducting state are coexisting matters.
    We have also carried out Co-NQR measurements on the cobalt oxide superconductors Na_xCoO_2^*1.3H_2O over a wide Na content range x=0.25-0.34. We find that T_c increases with decreasing x but reaches to a plateau for x <0.28. In the sample with x=0.26, 1/T_1 shows a T^3 variation below T_c and down to T〜T_c/6, which unambiguously indicates the presence of line nodes in the superconducting (SC) gap function. However, for larger or smaller x, 1/T_1 deviates from the T^3 variation below T〜2 K even though the T_c (〜4.7 K) is similar, which suggests additional excitations due to possible competing magnetic or charge order nearby.

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  • 充填スクッテルダイト化合物の重い電子状態の解明

    Grant number：15072204  2003 - 2007

    日本学術振興会  科学研究費助成事業 特定領域研究  特定領域研究

    播磨 尚朝, 大貫 惇睦, 鄭 国慶, 今田 真, 清水 克哉, 難波 孝夫, 杉山 清寛

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    Grant amount：\157800000 （ Direct expense: \157800000 ）

    (電子状態計算)LaOS_4P_12のフェルミ面を明らかにし、ネスティング条件を議論した。
    (dHvAと高磁場)ROs_4P_l2(R=La,Ce,Pr,Nd,Sm)とEuRu_4Sb_12の単結晶育成に成功し、dHvA測定を行った。PrOs_4P_12のフェルミ面はLaOs_4P_12と類似しており18m_0の重いサイクロトロン有効質量を観測し、LaOs_4P_12に比べ4倍ほど重くなっている。EuRu_4Sb_12においてdHvAを観測し、フェルミ面の形状からEuの価数は2価であると推測した。
    (NMR/NQR)PrOs_4Sb_12の超伝導状態および結晶場分裂をP=3.82GPaまでの高圧下NMRによつて調べた。また、YbFe_4Sb_12の緩和時間測定(100K以下)で見られる異常に関して、価数変化とラットリングの観点から議論を行った。
    (光電子分光)重い電子系的な振る舞いを示すSmOs_4Sb_12は、電子状態の基本的な知見が不足してが、Smが2価と3価の間の価数揺動状態にあること、平均価数が温度変化すること、フェルミ準位付近に大きなSm4f部分状態密度が有ることを明らかにした。
    (高圧測定)高圧下の比熱測定技術を整備し、電気抵抗測定との同時測定を可能にした。結晶構造解析等によって、PrRu_4P_l2の高次の多極子秩序および超高圧下の物性変化について系統的に研究した。
    (赤外分光)・CeRu_4As_12を常温でCeOs_4As_12を室温から3.3 Kの温度範囲で光反射率の測定を行った。いずれも0.leV程度のエネルギーギャップを有する半導体であることを明らかとした。

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  • NMR STUDY OF THE COEXISTENCE OF SUPERCONDUCTIVITY AND ANTIFEROMAGNETISM IN HEAVY FERMION SYSTEM Ce(Ir, Rh)In_5

    Grant number：14540338  2002 - 2003

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    GUG-QING Zheng

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    Grant amount：\3600000 （ Direct expense: \3600000 ）

    CeMIn_5 (M=Ir, Co, Rh) is a new class of heavy fermion compounds. CelrIn_5 and CeCoIn_5 are superconductors with T_c=400mK and 2.3K, respectively. CeRhIn5 is an antiferromagnet with T_N=3.7K but becomes superconducting under high pressures. Also, upon alloying, Ce(Rh_<1-x>Ir_x)In_5 was suggested to exhibit a coexistence of antiferromagnetism (AF) and superconductivity (SC) over a wide range of Ir concentration, x.
    The purpose of this study is to investigate, through nuclear quadrupole resonance (NQR), how the coexistence of antiferrormagnetism and superconductivity takes place in Ce(Rh_<1-x>Ir_x)In_5 and to explore a possible coexistence of AF and SC in CeRhIn_5 under pressure.
    We have found that in AF and SC coexist microscopically in CeRhln5, in the pressure range of 1.6 Gpa<P<1.9 Gpa. In this pressure range, the magnetic moment was reduced substantially.
    In Ce(Rh_<1-x>Ir_x)In_5, we have found strong evidence for the microscopic coexistence of AF and SC in the range of 0.35<x<0.55. Specifically, for x=0.5,T_N is observed at 3K with a subsequent onset of SC at T_c=0.9K. Detailed analysis of the measured spectra indicate that the same electrons participate in both SC and AF. The nuclear spin-lattice relaxation rate.
    1/T_1 shows a broad peak at T_N and follows a T^3 variation below T_c, the latter property indicating unconventional SC as in CeIrIn_5. We further find that, in the coexistence region, the T^3 dependence of 1/T_1 is replaced by a T-linear variation below 0.4K, likely due to low-lying magnetic excitations associated with the coexisting magnetism.

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  • Dynamics of Self-Induced Quantum Vortices in Ferromagnetic Superconductor RuSr2YCU2O8

    Grant number：13440112  2001 - 2002

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)  Grant-in-Aid for Scientific Research (B)

    KITAOKA Yoshio, AKIMITSU Jun, ISHIDA Kenji, ZHENG Guo-qing

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    Grant amount：\13100000 （ Direct expense: \13100000 ）

    Frora Ru- and Cu MKR studies, we have presented evidence for coexistence of superconductivity and ferroraagnetism in a cuprate superconductor RuSr_2YCu_2O_H (RuY1212). The observation of a large enhancement of a radio-frequency field for the Ru-NMR signal at zero field reveals the existence of a ferromagnetic (FM) component in the ordered RuO_2 plane below a Curie temperature of T_M = 150 K. Just best below the onset temperature of superconductivity Tc(onset)= 45 K, a remarkable decrease of the nuclear spin-lattice relaxation rate 1/T_I was observed within the ordered RuO_2 plane as well as the CuO_2 plane revealing that the superconducting gap coexists with the FM component in the RuO_2 plane on a microscopic scale. In addition, from the the observation of a sharp pesk in ^<10>(L/T_I) at Tc(zero) 〜23 K where the resistivity becomes zero, we suggest that the motion of self-induced vortices originating from fluctuations of the FM component induces the resistivity between T c(onset) and T c(zero) in RuY1212.
    We alos have reported a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa_2Ca_4Cu_5O_y (Hg-1245) with T_c=108 K, which is composed of two types of CuO_2 planes in a unit cell, Three inner planes (IP) and twe outer planes (OP). The Cu-NMR study study has revealed that the optimally-doped OP undergoes a supercondcting (SC) transition at T_c=108 K, whereas the three underdoped IP's do an antiferromagnetic (AF) transition below T_x〜60 K with the Cu moments of 〜0.3-0.4μ_<K^+> The AF spin polarization at the IP is found to induce an internal fied at the SC OP. The observed metallic behavior at the IP gives the possibility that SC and AF order parameter coexist in a single CuO_2 plane.

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  • NMR STUDY OF THE ELECTRONIC STRUCTURE OF VORTICES IN D-WAVE SUPERCONDUCTORS

    Grant number：11640350  1999 - 2000

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)  Grant-in-Aid for Scientific Research (C)

    ZHENG Guo-qing

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    Grant amount：\3600000 （ Direct expense: \3600000 ）

    Magnetic field penetrates into a second-kind superconductor in a form of quantized vortex flux. In an s-wave superconductor with isotropic energy gap, the quasiparticle is localized within the vortex core whose radius is the superconducting coherence length. By contrary, the energy gap of d-wave superconductors, such as the high temperature superconductors, is anisotropic with line-nodes in the gap structure. Because of this gap anisotropy, the electronic state is expected to be quite different from that in an s-wave superconductor. In fact, recent theories predict that the quasiparticle state may be extended along the nodal directions to the outside of the core. However, this prediction is yet to be confirmed by experiments. In this project, we have studied the electronic structure around a vortex using the ^<63>Cu NMR method.
    In an overdoped high-T_c cuprate TlSr_2CaCu_2O_<6.8>(T_c=68 K), we have measured the Knight shift in the superconducting state as a function of magnetic field up to 28 Tesla. We find that the spin shift increases as increasing field. This gives an experimental evidence that there exist quasiparticle states outside the vortex core. Analysis shows that the spin shift increases as a square root of the applied field, which is in agreement with what is predicted by recent theories for a d-wave superconductor. Furthermore, we find that among the field-induced density of states, 85% of it are extended outside of the vortex core, and 15% is localized in the core.
    This study provides a quantitative account for the quasiparticle density of states associated with a vortex for the first time.

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  • Study of Strongly Correlated Condensed-Matter Systems under Multiple Extreme Conditions

    Grant number：10044083  1998 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B).  Grant-in-Aid for Scientific Research (B).

    KITAOKA Yoshio, ZHENG Guo-qing, MIYAKE Kazumasa, AMAYA Kiichi, ISHIDA Kenji

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    Grant amount：\6200000 （ Direct expense: \6200000 ）

    This research project was planed to investigate the novel electron phases in strongly correlated-electron systems, heavy-fermion, high-temperature cuprate and low dimensional organic materials under multiple extreme conditions. Obtained results are listed below.
    1. On the basis of Cu-NQR measurements, we have found that the ground state in a series of CeィイD2xィエD2CuィイD22ィエD2SiィイD22ィエD2 compounds evolves from magnetically ordered phase at x=0.975 to heavy-electron superconducting (SC) phase at x=1.025. The sample of x=0.99 does not exhibit any trace of magnetic phase transition down to 0.012 K, but is dominated by slow magnetic fluctuations with low frequencies comparable to the NQR frequency. For the samples of x=1.00 and 1.025 such a state is expelled by the onset of the SC state.
    2. From the NQR results under pressure (P) on near stoichiometric CeィイD20.99ィエD2CuィイD22ィエD2SiィイD22ィエD2 (TィイD2cィエD2=0.65 K), an exotic superconducting (SC) state due to an interplay with slowly-varying-magnetic-fluctuation-modes was found to be suppressed and replaced by a strong heavy-fermion SC phase at minute pressures exceeding P〜0.2 GPa. The TィイD21ィエD2 data in the high-P range 0.85-2.58 GPa are shown to be accountable by the "SCR theory". In P<0.2 GPa, an exotic interplay between magnetic and SC phase is implied.
    3. The magnetic-field dependencies of the pseudogap behavior in the underdoped YBaィイD22ィエD2CuィイD24ィエD2OィイD28ィエD2 (Y1248) was measured up to 23 T at the NHMF Laboratory (Tallahassee, Florida) and up to 28.5 T on the slightly overdoped TISrィイD22ィエD2CaCuィイD22ィエD2OィイD26.88ィエD2 with TィイD2cィエD2=68 K (TI1212). In the overdoped TI1212, we showed that the scalings found in the T and magnetic field dependencies of 1/TィイD21ィエD2 and Knight shift are consistent with the superconducting (SC) fluctuations. By contrast, even though 23.2 T reduces TィイD2cィエD2 by 26% in Y1248, no effect is seen on the normal-state pseudogap behavior. This was ascribed as due to the stronger coupling nature of the pairing than in TI1212.
    We have thus clarified the novel characteristics of anomalous magentism and unconventional superconductivity in the heavy-fermion and high-TィイD2cィエD2 cuprate oxides under multiple extreme conditions. The present research project enabled us to open new frontiers in the field.

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  • 高圧下におけるYM_<n2>の反強磁性スピンゆらぎのNMRによる研究

    Grant number：09740284  1997 - 1998

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    鄭 国慶

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    Grant amount：\2000000 （ Direct expense: \2000000 ）

    YMn_2は常圧下でネール温度が100Kの反強磁性体であるが,0.3GPa以上の圧力下では磁気秩序が消失する。本研究では、YMn_2に1.2GPaまでの圧力をかけ、その磁気的性質を^<55>Mn-NMRとNQRを用いて調べた。特に、そのスピン相関を銅酸化物超伝導体のものと比較した。以下、本研究で得られた結果について述べる。
    まず、0.33GPaから0.4GPaまでの圧力の範囲内では、反強磁性相と常磁性相の共存を見い出し、圧力誘起相転移が1次相転移であることを明らかにした。次に、常圧下でナイトシフトを測定し、スピン帯磁率を評価した結果、この物質のエネルギーバンド幅が電子相関を取り入れない計算値よりも6倍ほど狭いことを明らかにした。これは電子相関の効果であると考えられる。次に、0.4GPaと8.5GPaの圧力下でナイトシフトを4.2Kから300Kまでの温度範囲内で測定した。ナイトシフトの大きさは圧力とともに減少した。Mn核の超微細相互作用が負であるので、この結果はエネルギーバンド幅が圧力とともに増大することを示すものである。これは、圧力はMn3d電子の遍歴性を増大させた結果と考えられる。
    さらに、0.33GPa,0.40GPa,0.85GPaと1.2GPaの圧力下で核スピン緩和率1/T_1を測定した。1/T_1が低温で異方的スピンゆらぎの理論に従うが高温では局在的スピンゆらぎの振る舞いを示す。このクロスオーバー温度が圧力とともに増大する。これは圧力とともに、Mn3d電子の遍歴性が増大した結果と考えられ、先のナイトシフトの結果と一致する。また、このクロスオーバーが銅酸化物に似ていることを指摘した。

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  • 銅酸化物人工格子のNMRによる研究

    Grant number：07740297  1995

    日本学術振興会  科学研究費助成事業 奨励研究(A)  奨励研究(A)

    鄭 国慶

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    Grant amount：\1100000 （ Direct expense: \1100000 ）

    本研究の当初の目的は,銅酸化物人工格子の研究であったが,その人工格子を構成する酸化物高温超伝導体のいくつかの性質をさきに究明する必要があったので,平成7年度は主にその研究を行い,人工格子の研究は現在進行中で,成果は間もなく発表する予定である。以下,酸化物高温超伝導体Tl_2Ba_2Ca_2Cu_3O_<10>(T12223)について研究成果を述べる。
    T12223の超伝導転移温度T_cは125Kで,YBa_2Cu_3O_7(Y123,T_c=92K)に比べて3割以上も高い。その原因の究明は高温超伝導の発現機構の解明に重要な手がかりを与えるものと考えられる。本研究では^<63>Cu,^<17>O及び^<205>TIのNMRを行い,スピンゆらぎの特性を解析した。その結果,Y123に比べて,スピン相関長ξは同程度であるが,スピンゆらぎのスペクトルウエートが高エネルギー側に移っていることが判明した。具体的に,反強磁性スピンゆらぎの特性エネルギーГ_Qは4割ぐらい大きいことが明らかになった。スピンゆらぎによる超伝導の機構では,T_cはГ_Qξ^2に比例する。したがって,この実験結果は高温超伝導がスピンゆらぎによって実現していることを示唆するものである。

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  • NMR Study of the New Antiferromagnetic Heavy Fermion Superconductors UM_2Al_3 (M=Ni and Pd)

    Grant number：04452051  1992 - 1993

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for General Scientific Research (B)

    ASAYAMA Kunisuke, ZHENG Guo-qing, KITAOKA Yoshio

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    Grant amount：\6300000 （ Direct expense: \6300000 ）

    NMR and NQR studies on two newly-discovered antiferromagnetic heavy-fermion superconductors, UNi_2Al_3 and UPd_2Al_3 with T_c = 1 and 2K and T_N =4.2K and 14K, respectively, have revealed that the type of magnetic fluctuation and spin structure of these two compounds belong to different classes. UNi_2Al_3 possesses a unique feature where the low-energy spin fluctuations survive in a low-T region, keeping a strong wave-number dependence. This is the first case in the magnetic actinide system. The spin structure is presumably of a helical spin type where the magnetic field causes a partial canting of an assembly of spins to the direction of the magnetic easy plane. In UPd_2Al_3, there emerges a partial energy gap on the Fermi surface below T_N, while the low temperature properties are governed by the Fermi liquid excitation associated with the residual density of states. The spin structure is of a commensurate type where the ferromagnetic sheets directed in the magnetic easy plane couple antiferromagnetically along the hexagonal caxis. It should, however, be noted that the magnetic moments, 0.85mu_B for UPd_2Al_3 is by one order of magnitude larger than 0.03mu_B for URu_2Si_2, while the magnetic or electronic energy gap is rather by one-half smaller.
    The unstablesuperconducting property of UNi_2Al_3 in powder sample in comparison with UPd_2Al_3 may be related to the unique magnetic nature of UNi_2Al_3. The superconductivity in UPd_2Al_3 is in a clean limit with dominant singlet pairing. This means that the impurity scattering plays a minor role and hence the pseudo-spin momentum is preserved in the pairing state. The superconducting energy gap is of an anisotropic type where the gap vanishes on lines at the Fermi surface. Apparently, the unique relaxation behavior in the heavy fermion superconductors is consistently described in terms of a universal gapless model, irrespective of the variety of the magnetic and normal state properties.

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  • NMR法を用いたNb-Cu多層膜における超伝導近接効果に関する研究

    Grant number：03740191  1991

    日本学術振興会  科学研究費助成事業  奨励研究(A)

    鄭 国慶

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    Grant amount：\900000 （ Direct expense: \900000 ）

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