物理化学学报 >> 1994, Vol. 10 >> Issue (09): 809-812.doi: 10.3866/PKU.WHXB19940908

研究论文 上一篇    下一篇

氧化物超导电性的经验判据

赵良仲   

  1. 中国科学院化学研究所,北京 100080
  • 收稿日期:1993-05-08 修回日期:1993-09-14 发布日期:1994-09-15
  • 通讯作者: 赵良仲

An Empirical Criterion for Superconductivity of Oxides

Zhao Liang-Zhong   

  1. Institute of Chemistry,Academia Sinica,Beijing 100080
  • Received:1993-05-08 Revised:1993-09-14 Published:1994-09-15
  • Contact: Zhao Liang-Zhong

摘要:

本文提出Sanderson电负性均衡值Seq可作为氧化物超导电性的新的经验判据. 判据指出:Tc在10K以上的氧化物超导体的Seq值都在1.94至2.40之间,Tc在78K以上的氧化物高温超导体的Seq值集中在2.12至2.34之间.该判据几乎适用于一切氧化物超导体.

关键词: 氧化物超导体, Sanderson电负性均衡值

Abstract:

 In this article it is suggested that the Sanderson's equalized electronegativity, Seq, can be used as a new empirical criterion for superconductivity of oxides. The criterion shows that the Seq values are between 1.94 and 2.40 for oxide superconductors with Tc above 10K; the Seq values concentrate in a very narrow range from 2.12 to 2.34 for the high-Tc superconductors with Tc above 78K. This criterion can be applied to almost all the oxide superconductors.

Key words: Oxide superconductors, Sandersons equalized electronegativity