中国物理B ›› 1993, Vol. 2 ›› Issue (11): 857-862.doi: 10.1088/1004-423X/2/11/008

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CRITICAL CURRENT DENSITY OF Y-Ba-Cu-Sn-O SUPERCONDUCTORS

金新1, 张贻瞳1, 金继荣1, 姚希贤1, 冯勇2, 周廉2, 王克光2, 杜明焕2, 卢亚锋3, 张裕恒4   

  1. (1)Nanjing University, Nanjing 210008, China; (2)Northwest Institute for Nonferrous Metal Research, P.O.Box 71, Baoji 721014, China; (3)Shaanxi Normal University, Xian 710062, China; (4)Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:1992-12-03 出版日期:1993-11-20 发布日期:1993-11-20
  • 基金资助:
    Project supported by the National Center for Research and Development on superconductivity of China.

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   

  1. 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
  • Received:1992-12-03 Online:1993-11-20 Published:1993-11-20
  • Supported by:
    Project supported by the National Center for Research and Development on superconductivity of China.

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摘要： 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.

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.

中图分类号:  (Critical currents)

  • 74.25.Sv
74.25.Ha (Magnetic properties including vortex structures and related phenomena)