ANISOTROPIC LOWER CRITICAL FIELDS OF ALIGNED HIGH-TC SUPERCONDUCTING Y1BA2(CU1-XFEX)3OZ POWDER COMPOSITES

被引：0

作者：

KIM, YC ^{[1
]}

JANG, MS ^{[1
]}

HAN, SK ^{[1
]}

THOMPSON, JR ^{[1
]}

CHRISTEN, DK ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)91273-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Uniaxially-aligned powder composites of Y1Ba2(Cu1-xFex)3Oz for x less-than-or-equal-to 0.1 are formed by magnetic alignment of particles suspended in epoxy. The anisotropic lower critical field H(c1) was determined from a procedure based on the Bean's critical state model to pick up the onset of flux penetration in magnetization curves. For both field orientations H\\c and H\\ab at 4.2 K, H(c1) decrease linearly with increasing Fe content from H(c1) = 298 Oe to 32 Oe and from 101 Oe to 3 Oe, respectively. The temperature dependencies of H(c1) for both H\\c and H\\ab are such that it tends to decrease linearly with increasing temperature.

引用

页码：1547 / 1548

页数：2

共 4 条

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