ANISOTROPY OF THE CRITICAL CURRENT-DENSITY IN BULK Y1BA2CU3O7-DELTA MEASURED BY TORQUE MAGNETOMETRY FOR VARIOUS OXYGEN DEFICIENCIES

被引：20

作者：

JANOSSY, B ^{[1
]}

GU, H ^{[1
]}

CABANEL, R ^{[1
]}

FRUCHTER, L ^{[1
]}

机构：

[1] ICR THOMSON CSF,F-91404 ORSAY,FRANCE

来源：

PHYSICA C | 1992年 / 193卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(92)90956-D

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The irreversibility of torque signals is used to measure the anisotropy of the critical current in aligned mono-crystalline grains of YBCO, with various oxygen contents. The fully oxidized compound behaves essentially as a 3D anisotropic material. In particular, the scaling with the transverse field component, expected in the 2D limit, is limited to fields close to the direction of the planes. The oxygen deficient samples show characteristics expected in the 2D case: no angular resolved contribution of the twin planes, and extended angular range for scaling.

引用

页码：344 / 352

页数：9

共 33 条

[1] MAGNETIZATION OF HIGH-FIELD SUPERCONDUCTORS [J].