CRITICAL CURRENT BEHAVIOR OF MELT TEXTURED BI2SR2CACU2OX

被引：9

作者：

ZHUKOV, A

KUPFER, H

KRESSE, R

MEIERHIRMER, R

KARABASHEV, S

机构：

[1] MV LOMONOSOV STATE UNIV, DEPT PHYS, MOSCOW 117234, USSR

[2] MOSCOW STEEL & ALLOYS INST, MOSCOW, USSR

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1992年 / 5卷

关键词：

D O I：

10.1088/0953-2048/5/1S/031

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Melt textured Bi2Sr2CaCu2O(x) samples were produced by floating zone technique. The critical current and its main problems such as granularity, relaxation and irreversibility field were studied by magnetization and ac flux profile measurements. The critical current density j(c) within the a,b plane reaches 6.7.10(4) A/cm2 at 4.2 K for zero external field. For wide temperature and magnetic field ranges j(c) decreases exponentially with field and temperature. The irreversibility line also shows an exponential decrease with temperature. The influence of different criteria used for the determination of both quantities is measured and discussed.

引用

页码：S153 / S156

页数：4

共 14 条

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