Effect of oxide dopants on the superconducting properties of YBCO superconductor

被引：7

作者：

Lee, S. H. ^{[1
]}

Choi, Y. ^{[2
]}

机构：

[1] Sunmoon Univ, Dept Elect Engn, Asan 336840, Chungnam, South Korea

[2] Sunmoon Univ, Dept Elect Mat Engn, Asan 336840, Chungnam, South Korea

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 5-7期

关键词：

YBa2Cu3O7-y; Magnetism pinning center;

D O I：

10.1016/j.physb.2008.11.232

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

YBCO superconductors with different contents were prepared by a unique method, called a partial melting process, to study the effect of cerium oxide on their electromagnetic properties and superconducting mechanism. Microstructure observations by electron microscopy and chemical analysis by X-ray and electron micro-probe analyses showed that the cerium oxide formed a BaCeO3 phase. which separately existed from a YBCO phase. The critical temperature of the YBCO superconductor was not predominantly dependent upon the cerium oxide phase. The maximum magnetism was observed by adding 3% cerium oxide. The addition of cerium oxide formed a pinning center of magnetic flux due to the BaCeO3 phase, which was related to a change for the electromagnetic properties of the YBCO superconductor. (C) 2008 Published by Elsevier B.V.

引用

页码：734 / 736

页数：3

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