THE INFLUENCE OF CARRIER CONCENTRATION ON THE SUPERCONDUCTIVE PROPERTIES OF YBA2CU3-XLIXO6.5+Y-X-2

被引：8

作者：

FEDUZI, R

LANZA, F

GIARDINA, MD

机构：

[1] Commission of The European Communities, Joint Research Centre, Institute for Advanced Materials, Ispra

来源：

PHYSICA C | 1992年 / 195卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90088-T

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of the addition of lithium at five different concentration levels on the electrical properties of YBa2Cu3O6.5+y (123) compound has been investigated. A complete chemical characterisation of the doped samples has been performed determining the oxygen concentration by iodometric titration and the Li content by spectrometrical flame analyses. A decrease of the lattice parameter c has been revealed by X-ray measurements with the increase of the lithium content. It appears that the Li prefers the Cu site on the CuO2 Planes and decreases the T(c) transition temperature, inducing, progressively, a semiconductor behaviour also at constant average Cu charge.

引用

页码：177 / 184

页数：8

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