Oxidation state of copper and superconductivity in the Hg-Ba-Ca-Cu-O system

被引：13

作者：

Chen, XJ

Xu, ZA

Wang, JS

Jiao, ZK

Zhang, QR

机构：

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 258卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(96)00615-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The oxidation state of Cu in HgBa2Can-1CunO2n+2+delta (n = 1-5) phases has been analyzed in terms of the bond valence sums. The totally mobile hole concentration (n(H,t)) of type-I CuO2 planes at the optimal level increases with the increasing number of CuO2 layers (it) per unit cell from 1 to 3, and the largest n(H,t) is observed to be 0.350 when n = 3, which just corresponds to the highest T-c in the Hg-based series. Thus the relationship between the maximum T-c for each member and the number it is similar to the correlation between the n(H,t) and the n.

引用

页码：1 / 5

页数：5

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