研究者詳細 - 鄭　国慶

論文 - 鄭　国慶

分割表示 265 件中 261 - 265 件目／全件表示 >>

Energy Gap of Proximity-Effect-Induced Superconductivity in Nb-Cu Multilayers. 共著

Physica B 165-166 ( 1 ) 481 - 482 1990年

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年1月

記述言語：英語出版者・発行元：一般社団法人日本物理学会

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 Nd_1.85Ce_0.15CuO₄ 共著

J. Phys. Soc. Jpn. 58 ( 6 ) 1910 - 1913 1989年

CU-63 NMR-STUDY OF SUPERCONDUCTING CU/NB MULTILAYER-FILM 査読

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

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 56 ( 12 ) 4495 - 4502 1987年12月

CU-63 NMR-STUDY OF SUPERCONDUCTING CU/NB SUPERLATTICE 査読

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年

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