波谱学杂志 ›› 1997, Vol. 14 ›› Issue (6): 545-550.

• 研究论文 • 上一篇    

ESR方法研究高Tc氧化物的超导电性

梁任又1, 侯碧辉2   

  1. 1 中国科学技术大学结构分析开放实验室, 合肥 230026;
    2 中国科学技术大学物理系, 合肥 230026
  • 收稿日期:1997-05-12 修回日期:1997-06-26 出版日期:1997-12-05 发布日期:2018-01-22
  • 作者简介:梁任又,女,5岁,本科,副教授

ESR STUDY ON SUPERCONDUCTIVITY OF HIGH Tc OXIDES

Liang Renyou1, Hou Bihui2   

  1. 1 Stucture Research Laboratory, University of Science and Technology of China, Hefei 230026;
    2 Department of Physics, University of science and Technology of China, Hefei 230026
  • Received:1997-05-12 Revised:1997-06-26 Online:1997-12-05 Published:2018-01-22

摘要: 用电子顺磁共振(ESR)方法研究了一些高温超导氧化物样品的零场非共振吸收信号和正常的ESR共振信号,认为这种方法可以作为鉴别样品进入超导态的实验判据之一.利用零场非共振吸收实验结出的下临界磁场Hc1(T)很好地遵从Hc1(T)=HHc1(0)(1-T2/Tc2).还讨论了掺杂使Cu2+ ESR信号增强的原因.

关键词: ESR, 高Tc氧化物, 超导电性

Abstract: The lower critical field Hc1 (T) of superconductor was studied with the zero-field non-resonant absorption signals by ESR method. The experimental values of Hc1 (T) accord with Hc1 (T)=Hc1 (0)(1-T2/Tc2). The reason for the increase of Cu2+ ESR signal intensity with doping is also discussed.

Key words: ESR, High Tc oxide, Superconductivity