FLUX CREEP AND THE NATURE OF A FLUX BUNDLE IN HIGH-TC THIN-FILMS

被引：12

作者：

ENGLAND, P

INAM, A

WU, XD

HEGDE, MS

DUTTA, B

VENKATESAN, T

机构：

[1] Bellcore, Red Bank, NJ 07701-7040

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.41.4834

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe measurements of the temperature and magnetic-field dependence of the resistance and critical current in laser-deposited thin films of the high-temperature superconductor YBa2Cu3O7-x. We identify two regimes: At low current densities and magnetic fields the sample is Ohmic. We attribute dissipation in this regime to activated flux motion of individual flux quanta in a vortex glass. In the high current and magnetic-field regime we show that collective vortex motion is occurring, and we propose a model for the structure of a flux bundle. © 1990 The American Physical Society.

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页码：4834 / 4837

页数：4

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