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

DOI： 10.1088/1674-1056/ab892d

Web of Science

researchmap

Other Link： https://iopscience.iop.org/article/10.1088/1674-1056/ab892d/pdf

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

DOI： 10.1038/s41467-019-14126-w

Web of Science

researchmap

Other Link： http://www.nature.com/articles/s41467-019-14126-w

Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

We report the Pb-207 nuclear magnetic resonance (NMR) measurements on polycrystalline sample of PbTaSe2 with noncentrosymmetric crystal structure and topological electronic band. The nuclear spin-lattice relaxation rate 1 / T-1) shows a suppressed coherence peak below the superconducting transition temperature T-c = 4.05 K and decreases as an exponential function of temperature. The penetration depth derived from the NMR spectrum is almost temperature independent below T = 0.7 T-c. The Knight shift K decreases below T-c. These results suggest spin-singlet superconductivity with a fully opened gap 2 Delta = 3.5 k(B)T(c) in PbTaSe2.

DOI： 10.1103/PhysRevB.97.184510

Web of Science

researchmap

Authorship：Lead author   Language：Japanese   Publishing type：Research paper (other academic)  

DOI： 10.11316/butsuri.73.2_103

researchmap

Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

The In-doped topological crystalline insulator Sn1-x In-x Te is a candidate for a topological superconductor, where a pseudo-spin-triplet state has been proposed. To clarify the spin symmetry of Sn1-x In-x Te, we perform Te-125-nuclear magnetic resonance (NMR) measurements in polycrystalline samples with 0 <= x <= 0.15. The penetration depth calculated from the NMR line width is T independent below half the superconducting transition temperature (T-c) in polycrystalline Sn0.96In0.04Te, which indicates a fully opened superconducting gap. In this sample, the spin susceptibility measured by the spin Knight shift (K-s) at an external magnetic field of H-mu 0(0) = 0.0872 T decreases below T-c, and K-s(T = 0)/K-s(T = T-c) reaches 0.36 +/- 0.10, which is far below the limiting value 2/3 expected for a spin-triplet state for a cubic crystal structure. Our result indicates that polycrystalline Sn0.96In0.04Te is a spin-singlet superconductor.

DOI： 10.1103/PhysRevB.96.104502

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

The noncentrosymmetric superconductor Re6Zr has attracted much interest for its possible unconventional superconducting state with broken time-reversal symmetry. Here we report Re-185/187 nuclear quadrupole resonance measurements on Re6Zr (T-c = 6.72 K) and the isostructural compounds Re27Zr5 (T-c = 6.53 K) and Re24Zr5 (T-c = 5.00 K). The nuclear spin-lattice relaxation rate 1/T-1 shows a coherence peak below T-c and decreases exponentially at low temperatures in all three samples. The superconducting gap Delta derived from the 1/T-1 data is 2 Delta = 3.58k(B)T(c), 3.55k(B)T(c), and 3.51k(B)T(c) for Re6Zr, Re27Zr5, and Re24Zr5, respectively, which is close to the value of 3.53k(B)T(c) expected for weak-coupling superconductivity. These data suggest conventional s-wave superconductivity with a fully opened gap in this series of compounds.

DOI： 10.1103/PhysRevB.94.214513

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：NATURE PUBLISHING GROUP  

Spontaneous symmetry breaking is an important concept for understanding physics ranging from the elementary particles to states of matter. For example, the superconducting state breaks global gauge symmetry, and unconventional superconductors can break further symmetries. In particular, spin-rotational symmetry is expected to be broken in spin triplet superconductors. However, experimental evidence for such symmetry breaking has not been conclusively obtained so far in any candidate compounds. Here, using Se-77 nuclear magnetic resonance measurements, we show that spin-rotation symmetry is spontaneously broken in the hexagonal plane of the electron-doped topological insulator Cu0.3Bi2Se3 below the superconducting transition temperature T-c = 3.4 K. Our results not only establish spin-triplet superconductivity in this compound, but may also serve to lay a foundation for the research of topological superconductivity.

DOI： 10.1038/NPHYS3781

Web of Science

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.71.1.0_1985

CiNii Article

CiNii Books

researchmap

Language：English   Publishing type：Research paper (scientific journal)   Publisher：American Physical Society  

In many cases, unconventional superconductivity are realized by suppressing another order parameter, such as charge density wave (CDW) or spin density wave (SDW). This suggests that the fluctuations of these order parameters play an important role in producing superconductivity. LaPt2Ge2 undergoes a tetragonal-to-monoclinic structural phase transition (SPT) at Ts=394 K, accompanying a double period modulation in the a-axis direction, and superconducts at Tc=0.41 K. We performed band calculations and found 2D (two dimensional)-like Fermi surfaces with partial nesting. A reduction in the density of states in the monoclinic phase was found in the calculation and confirmed by Pt195-NMR. We suggest a CDW as a possible cause for the SPT. By changing the stoichiometry between Pt and Ge, we succeeded in suppressing Ts and increasing Tc in LaPt2-xGe2+x. Comparison of La139- and Pt195-NMR data reveals moderate fluctuations associated with SPT. From La139-NQR measurements at zero field, we found that an isotropic superconducting gap is realized in LaPt2-xGe2+x (x=0.20). We discuss the relationship between superconductivity and the SPT order/fluctuations.

DOI： 10.1103/PhysRevB.91.174516

Scopus

researchmap

Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

In many cases, unconventional superconductivity are realized by suppressing another order parameter, such as charge density wave (CDW) or spin density wave (SDW). This suggests that the fluctuations of these order parameters play an important role in producing superconductivity. LaPt2Ge2 undergoes a tetragonal-to-monoclinic structural phase transition (SPT) at T-s = 394 K, accompanying a double period modulation in the a-axis direction, and superconducts at T-c = 0.41 K. We performed band calculations and found 2D (two dimensional)-like Fermi surfaces with partial nesting. A reduction in the density of states in the monoclinic phase was found in the calculation and confirmed by Pt-195-NMR. We suggest a CDW as a possible cause for the SPT. By changing the stoichiometry between Pt and Ge, we succeeded in suppressing T-s and increasing T-c in LaPt2-xGe2+x. Comparison of La-139- and Pt-195-NMR data reveals moderate fluctuations associated with SPT. From La-139-NQR measurements at zero field, we found that an isotropic superconducting gap is realized in LaPt2-xGe2+x (x = 0.20). We discuss the relationship between superconductivity and the SPT order/fluctuations.

DOI： 10.1103/PhysRevB.91.174516

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

We report Pt-195-NMR and As-75 nuclear quadrupole resonance measurements for the locally noncentrosymmetric superconductor SrPtAs where the As-Pt layer breaks inversion symmetry while globally the compound is centrosymmetric. The nuclear spin-lattice relaxation rate 1/T-1 shows a well-defined coherence peak below T-c and decreases exponentially at low temperatures. The spin susceptibility measured by the Knight shift also decreases below Tc down to T < T-c/6. These data, together with the penetration depth obtained from the NMR spectra, can be consistently explained by a spin-singlet superconducting state with a full gap. Our results suggest that the spin-orbit coupling due to the local inversion-symmetry breaking is not large enough to bring about an exotic superconducting state, or the interlayer hopping interaction is larger than the spin-orbit coupling.

DOI： 10.1103/PhysRevB.89.140504

Web of Science

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.69.1.4.0_707_3

CiNii Article

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：PHYSICAL SOC JAPAN  

We report the nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements for non-centrosymmetric superconductors Re7B3, LaBiPt, and BiPd containing heavy elements. For all three compounds, the spin-lattice relaxation rate 1/T-1 shows a coherence peak just below T-c and decreases exponentially at low temperatures, which indicates that an isotropic superconducting gap is dominant in these compounds. In BiPd, the height of the coherence peak just below T-c is much suppressed, which suggests that there exists a substantial component of gap with nodes in this compound. Our results indicate that heavy element is not the only factor, but the extent of inversion symmetry breaking is also important to induce a large spin-orbit coupling and an unconventional superconducting state.

DOI： 10.7566/JPSJ.82.084711

Web of Science

researchmap

Language：English   Publishing type：Research paper (scientific journal)   Publisher：PHYSICAL SOC JAPAN  

DOI： 10.7566/JPSJ.82.065002

Web of Science

researchmap

Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IOP PUBLISHING LTD  

We report B-11 nuclear magnetic resonance (NMR) studies of the impurity effect in noncentrosymmetric superconductors Li2Pt3B and Li2Pd3B. We substitute B with Al, and find that the full width of half maximum (FWHM) of the NMR spectrum increases with increasing Al content. The superconducting transition temperature (T-c) of Li2Pt3 B1-xAlx decreases drastically with increasing non-magnetic impurity (Al) content, while it is hardly affected in Li2Pd3 B(1-x)A(l)x. These results provide new evidence for superconducting gap with line nodes in Li2Pt3B.

DOI： 10.1088/1742-6596/449/1/012034

Web of Science

researchmap

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

We present extensive As-75-NMR data on the electron-doped pnictides PrFeAsO0.89F0.11 (T-c = 45 K), LaFeAsO0.92F0.08 (T-c = 23 K), and the hole-doped Ba0.72K0.28Fe2As2 (T-c = 31.5 K) single crystal. We find that the Fe antiferromagnetic spin fluctuations are anisotropic and are weaker compared to underdoped copper-oxides or cobalt-oxide superconductors. The spin lattice relaxation rate 1 / T-1 decreases below T-c with no coherence peak and shows a step-wise variation at low temperatures. The Knight shift decreases below T-c and shows a step-wise T variation as well. These results indicate spin-singlet superconductivity with multiple gaps.

DOI： 10.1007/s10948-010-0749-1

Web of Science

researchmap

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

We have performed As-75 nuclear magnetic resonance measurements on a single crystal of the hole-doped superconductor Ba0.72K0.28Fe2As2 (T-c = 31.5 K). The spin-lattice relaxation rate 1/T-1 decreases below T-c with no coherence peak and shows a step-wise variation at low temperatures, which is indicative of multiple superconducting gaps. In the normal state, we find that Fe antiferromagnetic spin fluctuations are anisotropic. (C) 2009 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physc.2009.11.174

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：IOP PUBLISHING LTD  

We report the As-75-NMR study on a single crystal of the hole-doped iron-pnictide superconductor Ba0.72K0.28Fe2As2 (T-c = 31.5 K). We find that the Fe antiferromagnetic spin fluctuations are anisotropic and are weaker compared to underdoped copper-oxides or cobalt-oxide superconductors. The spin lattice relaxation rate 1/T-1 decreases below T-c with no coherence peak and shows a stepwise variation at low temperatures, which is indicative of multiple superconducting gaps, as in the electron-doped Pr(La) FeAsO1-xFx. Furthermore, no evidence was obtained for a microscopic coexistence of a long-range magnetic order and superconductivity. Copyright (C) EPLA, 2009

DOI： 10.1209/0295-5075/87/27012

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY  

We report Co-59 NMR studies in single crystals of the cobalt oxide superconductor Na0.42CoO2 center dot 1.3H(2)O (T-c = 4.25 K) and its parent compound Na0.42CoO2. We find that both the magnitude and the temperature (T) dependence of the Knight shifts are identical in the two compounds above T-c. The spin-lattice relaxation rate (1/T-1) is also identical above T-0 similar to 60K for both compounds. Below T-0, the unhydrated sample is found to be a non-correlated metal that well conforms to the Fermi liquid theory, while spin fluctuations develop in the superconductor. These results indicate that water intercalation does not change the density of states at the Fermi level or the carrier density but its primary role is to bring about spin fluctuations. Our result shows that, in the hydrated superconducting compound, the electron correlation is anisotropic. Namely, the spin fluctuation around the finite wave vector is much stronger along the a-axis direction than that along the c-axis direction. Copyright (C) EPLA, 2008

DOI： 10.1209/0295-5075/84/57010

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY  

We report As-75 and F-19 NMR studies on the superconducting properties of the newly discovered compound PrFeAsO0.89F0.11 (T-c = 45 K). The Knight shift in the direction of H parallel to ab-plane decreases below T-c to almost zero, which indicates spin-singlet pairing. The temperature dependencies of both the Knight shift and the spin lattice relaxation rate indicate that there are two gaps opening below T-c, with nodes in the gap function. Copyright (c) EPLA, 2008.

DOI： 10.1209/0295-5075/83/57001

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：ELSEVIER SCIENCE BV  

We report the spin susceptibility in the superconducting state of the cobalt oxide superconductor NaxCoO2 center dot 1.3H(2)O, via the (CO)-C-59 Knight shift measurements. Along both a- and c-axis directions, the shift decreases below T-c. At T = 1.7 K, the shift along the a-axis, K-a increases with increasing the strength of magnetic field (H), following a root H variation. Together with the T-3 dependence of the spin-lattice relaxation rate, 1/T-1, these results indicate unambiguously that the Cooper pairs are in the spin-singlet form and that there exist nodes in the gap function. The data are most consistent with a d-wave symmetry. (C) 2007 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physb.2007.10.251

Web of Science

researchmap

Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

We report T-c and Co-59 nuclear quadrupole resonance measurements on the cobalt oxide superconductor NaxCoO2 center dot 1.3H(2)O (T-c=4.8 K) under hydrostatic pressure (P) up to 2.36 GPa. T-c decreases with increasing pressure at an average rate of -0.49 +/- 0.09 K/GPa. At low pressures P <= 0.49 GPa, the decrease of T-c is accompanied by a weakening of the spin correlations at a finite wave vector and a reduction of the density of states (DOS) at the Fermi level. At high pressures above 1.93 GPa, however, the decrease of T-c is mainly due to a reduction of the DOS. These results indicate that the electronic and magnetic state of Co is primarily responsible for the superconductivity. The spin-lattice relaxation rate 1/T-1 at P=0.49 GPa shows a T-3 variation below T-c down to T similar to 0.12T(c), which provides compelling evidence for the presence of line nodes in the superconducting gap function.

DOI： 10.1103/PhysRevB.76.100506

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：ELSEVIER  

We report intensive studies on the cobalt oxide superconductors NaxCoO2 center dot 1.3H(2)O via Co-59 NMR and NQR measurements. In the sample with x = 0.26 and T-c = 4.6, we find that the spin-lattice relaxation rate 1/T-1 shows a T-3 variation below T-c and down to very low temperatures, which indicates the presence of line nodes in the superconducting (SC) gap function. We have also studied the spin susceptibility below T-c via the Knight shift measurement. The spin part of the Knight shift decreases below T-c in both the a- and c-directions indicating singlet spin state of the Cooper pairs. Our results strongly suggest that the superconducting state is a d-wave state. (c) 2006 Elsevier B. V. All rights reserved.

DOI： 10.1016/j.jmmm.2006.10.531

Web of Science

researchmap

Language：English   Publishing type：Research paper (scientific journal)   Publisher：AMER PHYSICAL SOC  

We report a Co-59 Knight-shift measurement in a single crystal of the cobalt oxide superconductor NaxCoO2 center dot 1.3H(2)O (T-c=4.25 K). We find that the shift due to the spin susceptibility, K-s, is substantially large and anisotropic, with the spin shift along the a-axis K-a(s) being two times that along the c-axis K-c(s). The shift decreases with decreasing temperature (T) down to T approximate to 100 K, then becomes a constant until superconductivity sets in. Both K-a(s) and K-c(s) decrease below T-c. Our results indicate unambiguously that the electron pairing in the superconducting state is in the spin singlet form.

DOI： 10.1103/PhysRevB.73.180503

Web of Science

researchmap

Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：ELSEVIER SCIENCE BV  

We report measurements on the cobalt oxide superconductors NaxCoO2 (.) 1.3H(2)O over a wide Na content range x = 0.25-0.34, using X-ray diffraction, susceptibility and Co-59 nuclear quadrupole resonance (NQR) techniques. We find that T, increases with decreasing x but reaches to a plateau for x <= 0.28, which correlates closely with the NQR frequency that measures the occupancy of the Co 3d-orbitals. (c) 2006 Elsevier B.V. All rights reserved.

DOI： 10.1016/j.physb.2006.01.480

Web of Science

researchmap

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

We report systematic measurements using the Co-59 nuclear quadrupole resonance (NQR) technique on the cobalt oxide superconductors NaxCoO2.1.3H(2)O over a wide Na content range x = 0.25-0.34. We find that T, increases with decreasing x but reaches a plateau for x <= 0.28. In the sample with x similar to 0.26, the spin-lattice relaxation rate 1/T-1 shows a T-3 variation below T-c and down h, to T similar to 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 similar to 2 K even though the T-c (similar to 4.7 K) is similar, which suggests an unusual evolution of the SC state. In the normal state, the spin correlations at a finite wavevector become stronger upon decreasing x, and the density of states at the Fermi level increases with decreasing x, which can be understood in terms of a single-orbital picture suggested on the basis of LDA calculation.

DOI： 10.1088/0953-8984/18/5/L02

Web of Science

researchmap

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

DOI： 10.14886/sssj2008.2018.0_298

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.73.1.0_1332

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.72.2.0_1013

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.70.1.0_2244

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.69.1.3.0_674_1

CiNii Article

J-GLOBAL

researchmap

DOI： 10.11316/jpsgaiyo.69.1.3.0_675_4

J-GLOBAL

researchmap

J-GLOBAL

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.68.2.3.0_568_3

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.67.2.3.0_478_4

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan  

DOI： 10.11316/jpsgaiyo.67.1.3.0_595_4

CiNii Article

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.66.2.3.0_637_4

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.66.1.3.0_553_1

CiNii Article

CiNii Books

researchmap

Language：English   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.64.2.3.0_546_1

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.64.1.3.0_613_3

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.64.1.3.0_613_2

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.63.2.3.0_563_4

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.63.2.3.0_563_3

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.63.2.3.0_484_3

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.63.1.3.0_612_1

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.62.2.3.0_635_3

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.62.2.3.0_538_2

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.62.1.3.0_640_1

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.61.2.3.0_504_4

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.61.1.3.0_649_1

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.60.2.3.0_467_4

CiNii Article

CiNii Books

researchmap

Language：Japanese   Publisher：The Physical Society of Japan (JPS)  

DOI： 10.11316/jpsgaiyo.59.2.3.0_453_1

CiNii Article

CiNii Books

researchmap

Event date： 2011.12.17 - 2011.12.19

Language：Japanese   Presentation type：Oral presentation (invited, special)  

Venue：岡山大学創立五十周年記念館  

researchmap

Event date： 2011.11.1 - 2011.11.5

Language：English   Presentation type：Oral presentation (invited, special)  

Venue：Laforet Biwako, Shiga Prefecture  

researchmap

Event date： 2023.9.16 - 2023.9.19

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：東北大学  

researchmap

Event date： 2023.8.8 - 2023.8.11

Language：English   Presentation type：Oral presentation (general)  

researchmap

Event date： 2023.3.22 - 2023.3.25

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：オンライン  

researchmap

Event date： 2022.12.8 - 2022.12.10

Language：English   Presentation type：Poster presentation  

researchmap

Event date： 2022.12.2

Language：English   Presentation type：Oral presentation (invited, special)  

researchmap

Event date： 2022.3.15 - 2022.3.19

Language：Japanese   Presentation type：Oral presentation (general)  

16pGB41-2

researchmap

Event date： 2022.3.15 - 2022.3.19

Language：Japanese   Presentation type：Oral presentation (general)  

15pT24-11

researchmap

Event date： 2021.3.12 - 2021.3.15

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：オンライン開催  

researchmap

Event date： 2021.3.12 - 2021.3.15

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：オンライン開催  

researchmap

Event date： 2019.12.3 - 2019.12.7

Language：English   Presentation type：Poster presentation  

Venue：Kyoto University  

researchmap

Event date： 2019.9.23 - 2019.9.28

Language：English  

Venue：Okayama Convention Center, Okayama  

researchmap

Event date： 2019.9.23 - 2019.9.28

Language：English   Presentation type：Poster presentation  

Venue：Okayama Convention Center, Okayama  

researchmap

Event date： 2019.9.10 - 2019.9.13

Language：Japanese  

Venue：岐阜大学  

researchmap

Event date： 2019.9.10 - 2019.9.13

Language：Japanese  

Venue：岐阜大学  

researchmap

Event date： 2018.11.19 - 2018.11.21

Language：Japanese   Presentation type：Poster presentation  

Venue：神戸国際会議場  

researchmap

Event date： 2018.3.22 - 2018.3.25

Presentation type：Oral presentation (general)  

Venue：東京理科大学（野田キャンパス）  

25aB101-7

researchmap

Event date： 2016.3.19 - 2016.3.22

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：東北学院大学 泉キャンパス  

19aBN-9

researchmap

Event date： 2015.3.21 - 2015.3.24

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：早稲田大学 早稲田キャンパス  

22pBC-10

researchmap

Event date： 2014.11.8 - 2014.11.10

Language：English   Presentation type：Poster presentation  

Venue：Hotel ‘Limani’, Ushimado  

researchmap

Event date： 2014.11.8 - 2014.11.10

Language：English   Presentation type：Poster presentation  

Venue：Hotel ‘Limani’, Ushimado  

researchmap

Event date： 2014.3.27 - 2014.3.30

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：東海大学 湘南キャンパス  

30aCM-10

researchmap

Event date： 2014.3.27 - 2014.3.30

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：東海大学 湘南キャンパス  

researchmap

Event date： 2014.3.27 - 2014.3.30

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：東海大学 湘南キャンパス  

28aBF-11

researchmap

Event date： 2014.3.27 - 2014.3.30

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：東海大学 湘南キャンパス  

researchmap

Event date： 2013.10.22 - 2013.10.26

Language：English   Presentation type：Poster presentation  

Venue：Culture Resort Festone  

researchmap

Event date： 2013.9.25 - 2013.9.29

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：徳島大学 常三島キャンパス  

27pEB-8

researchmap

Event date： 2012.9.18 - 2012.9.22

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：横浜国立大学 常盤台キャンパス  

researchmap

Event date： 2012.9.18 - 2012.9.22

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：横浜国立大学 常盤台キャンパス  

19aGB-4

researchmap

Event date： 2012.5.16 - 2012.5.20

Language：English   Presentation type：Poster presentation  

researchmap

Event date： 2012.5.16 - 2012.5.20

Language：English   Presentation type：Poster presentation  

Venue：Nagoya University, Nagoya  

researchmap

Event date： 2012.3.24 - 2012.3.27

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：関西学院大学 西宮上ケ原キャンパス  

researchmap

Event date： 2011.9.21 - 2011.9.24

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：富山大学  

24aGE-5

researchmap

Event date： 2011.3.25 - 2011.3.28

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：新潟大学五十嵐キャンパス  

25pED-2

researchmap

Event date： 2010.12.18 - 2010.12.20

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：京都大学 百周年時計台記念館  

researchmap

Event date： 2009.3.27 - 2009.3.30

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：立教大学、立教池袋中学・高校  

28pTA-9

researchmap

Event date： 2009.3.27 - 2009.3.30

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：立教大学、立教池袋中学・高校  

28pTA-8

researchmap

Event date： 2008.9.20 - 2008.9.23

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：岩手大学 上田キャンパス  

22pYA-13

researchmap

Event date： 2008.9.20 - 2008.9.23

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：岩手大学 上田キャンパス  

22pYA-12

researchmap

Event date： 2008.9.20 - 2008.9.23

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：岩手大学 上田キャンパス  

21aQE-1

researchmap

Event date： 2008.3.22 - 2008.3.26

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：近畿大学 本部キャンパス  

24pYB-2

researchmap

Event date： 2007.9.21 - 2007.9.24

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：北海道大学 札幌キャンパス  

23pWH-2

researchmap

Event date： 2007.9.21 - 2007.9.24

Language：Japanese   Presentation type：Poster presentation  

Venue：北海道大学 札幌キャンパス  

21aPS-93

researchmap

Event date： 2007.3.18 - 2007.3.21

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：鹿児島大学 郡元キャンパス  

21aWG-3

researchmap

Event date： 2006.9.23 - 2006.9.26

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：千葉大学 西千葉キャンパス  

25pZL-8

researchmap

Event date： 2005.9.19 - 2005.9.22

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：同志社大学 京田辺キャンパス  

21aXD-8

researchmap

Event date： 2004.9.12 - 2004.9.15

Language：Japanese   Presentation type：Oral presentation (general)  

Venue：青森大学  

13aRC-8

researchmap

researchmap