Current-induced vortex motion and the vortex-glass transition in YBa2Cu3Oy films

被引：8

作者：

Nojima, T

Kakinuma, A

Kuwasawa, Y

机构：

[1] Department of Physics, Faculty of Science, Chiba University, Chiba 263, 1-33 Yayoicho, Inage-ku

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.56.R14291

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements of current-voltage characteristics have been performed on YBa2Cu3Oy films for two components of electric fields in the ab plane, E-x and E-y, in magnetic fields of the form (H-0, H-0, delta H-0), where x\\ the current density J, z\\ the c axis, and delta much less than 1. The simultaneous measurements of E-x and E-y under these conditions make it possible to analyze the situation of the vortex motion due to the Lorentz force. Our results indicate that vortices move as long-range correlated lines only below the glass transition temperature in a low-current limit. We also show that applying high-current density destroys line motion and induces a structural change of vortex lines in the glass state.

引用

收藏

页码：14291 / 14294

页数：4

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