VORTEX-ANTIVORTEX INTERACTION IN LAYERED SUPERCONDUCTORS

被引：1

作者：

TIMM, C

APPEL, J

机构：

[1] I. Institut für Theoretische Physik, Universität Hamburg, W-2000 Hamburg 36

来源：

PHYSICA B | 1994年 / 194卷 / pt 2期

关键词：

D O I：

10.1016/0921-4526(94)91703-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The free energy of a vortex-antivortex pair in a Josephson-coupled layered superconductor is derived within the framework of the Lawrence-Doniach theory. The vortex-antivortex pair consists of two two-dimensional pancake vortices of opposite vorticity within one superconducting layer. The free energy of large pairs is found to depend linearly on the pair separation, and, therefore, the Kosterlitz-Thouless theory, which assumes a logarithmic interaction, is not applicable to the CuO2 superconductors.

引用

页码：2407 / 2408

页数：2

共 7 条

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