SUPERCONDUCTIVITY OF (Y1-XREX)BA2CU3O7-DELTA SYSTEM

被引：1

作者：

NAHM, K

KIM, JS

LEE, KB

SHONG, DW

CHA, BY

KIM, CK

机构：

[1] Department of Physics, Yonsei University, Seoul

来源：

JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 03期

关键词：

D O I：

10.1007/BF01045381

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polycrystalline samples of the superconducting oxides (Y1-xREx)Ba2Cu3O7-δ (RE = Er and Dy) with x=0, 0.2, 0.4, 0.6, 0.8 and 1.0 were prepared. From the X-ray diffraction and the electrical resistivity measurements, it was found that Tc and the unit cell volume have common peaks near x≃0.4. Close examination of previously published data on the (Y1-xREx)Ba2Cu3O7-δ system also indicate that an anomaly exists near x-0.4. This anomaly is ascribed to an anomalous change of δ in oxygen near x≃0.4. © 1990 Chapman and Hall Ltd.

引用

页码：1762 / 1764

页数：3

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