CRITICAL CURRENT DENSITY OF Y-Ba-Cu-Sn-O SUPERCONDUCTORS
FENG YONG (冯勇), ZHOU LIAN (周廉), WANG KE-GUANG (王克光), DU MING-HUAN (杜明焕), ZHANG YU-HENG (张裕恒)a, LU YA-FENG (卢亚锋)b, JIN XIN (金新)c, ZHANG YI-TONG (张贻瞳)c, JIN JI-RONG (金继荣)c, YAO XI-XIAN (姚希贤)c
Northwest Institute for Nonferrous Metal Research, P.O.Box 71, Baoji 721014, China; a Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China; b Shaanxi Normal University, Xian 710062, China; c Nanjing University, Nanjing 210008, China
Abstract The magnetic curves of bulk Y-Ba-Cu-Sn-O have been studied in the temperature range 60-77K and in fields up to 2.4T. The results indicate that Jc varies with the magnetic field as a power law and decreases exponentially with temperature. The critical current density Jc can be improved by the substitution of Sn for Cu.
Received: 03 December 1992
Accepted manuscript online:
Fund: Project supported by the National Center for Research and Development on superconductivity of China.
Cite this article:
FENG YONG (冯勇), ZHOU LIAN (周廉), WANG KE-GUANG (王克光), DU MING-HUAN (杜明焕), ZHANG YU-HENG (张裕恒), LU YA-FENG (卢亚锋), JIN XIN (金新), ZHANG YI-TONG (张贻瞳), JIN JI-RONG (金继荣), YAO XI-XIAN (姚希贤) CRITICAL CURRENT DENSITY OF Y-Ba-Cu-Sn-O SUPERCONDUCTORS 1993 Acta Physica Sinica (Overseas Edition) 2 857
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