ABSENCE OF CURRENT DIRECTION DEPENDENCE OF THE RESISTIVE STATE OF HIGH-TEMPERATURE SUPERCONDUCTORS IN MAGNETIC-FIELDS

被引：155

作者：

IYE, Y

NAKAMURA, S

TAMEGAI, T

机构：

[1] Univ of Tokyo, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1989年 / 159卷 / 04期

关键词：

Bismuth Compounds--Thin Films - Ceramic Materials;

D O I：

10.1016/S0921-4534(89)80017-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Resistive transition of Bi2Sr2CaCu2O8+y film in magnetic fields is studied in the light of the currently proposed flux creep model. Measurements with precise angular alignment have clarified that the resistive transition does not depend on the relative direction between magnetic field and transport current. This calls for a significant revision of the Lorentz-force-driven flux creep picture. A fluctuation induced phase-slip phenomenon as an alternative model is also discussed.

引用

收藏

页码：433 / 438

页数：6

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