中国物理B ›› 1993, Vol. 2 ›› Issue (10): 764-770.doi: 10.1088/1004-423X/2/10/006

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MEASUREMENT OF ANISOTROPIC ACTIVATION ENERGIES IN HIGH-Tc SUPERCONDUCTORS

范宏昌, 张贻瞳, 金新, 姚希贤   

  1. Department of Physics and State Key Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210008, China
  • 收稿日期:1992-08-21 出版日期:1993-10-20 发布日期:1993-10-20
  • 基金资助:
    Project supported by the Foundation for Doctoral Education and the National Center for Research and Development on Superconductivity of China.

MEASUREMENT OF ANISOTROPIC ACTIVATION ENERGIES IN HIGH-Tc SUPERCONDUCTORS

FAN HONG-CHANG (范宏昌), ZHANG YI-TONG (张贻瞳), JIN XIN (金新), YAO XI-XIAN (姚希贤)   

  1. Department of Physics and State Key Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210008, China
  • Received:1992-08-21 Online:1993-10-20 Published:1993-10-20
  • Supported by:
    Project supported by the Foundation for Doctoral Education and the National Center for Research and Development on Superconductivity of China.

摘要: For single crystalline and melt-textured samples there exist several different activation energies for fluxoid creep, which are related to various vortex orientations and hopping directions. We discuss how to obtain these anisotropic activation energies from magnetic relaxation data and present measured results of a melt-textured YBCO sample.

Abstract: For single crystalline and melt-textured samples there exist several different activation energies for fluxoid creep, which are related to various vortex orientations and hopping directions. We discuss how to obtain these anisotropic activation energies from magnetic relaxation data and present measured results of a melt-textured YBCO sample.

中图分类号: 

  • 74.25.Qt
74.81.Bd (Granular, melt-textured, amorphous, and composite superconductors)