Cation disorder effects in RBa2Cu3O7-x superconductors

被引：4

作者：

McAllister, JA

Attfield, JP

机构：

[1] Univ Cambridge, Interdisciplinary Res Ctr Superconduct, Cambridge CB2 1EW, England

[2] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

INTERNATIONAL JOURNAL OF INORGANIC MATERIALS | 1999年 / 1卷 / 3-4期

关键词：

superconductors; magnetic properties;

D O I：

10.1016/S1466-6049(99)00040-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Five mixed rare-earth RBa2Cu3O7-x samples have been prepared, each having a fixed R average radius of 1.053 Angstrom, but with increasing variance, sigma(2), Of the R cation radius distribution. The superconducting T-c's were found to vary linearly with sigma(2) although the dependence is small (dT(c)/d sigma(2)=-1160(70) K Angstrom(-2)). Similar behaviour was observed as the oxygen contents of the samples were decreased. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

收藏

页码：269 / 271

页数：3

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