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
收藏
页码：2407 / 2408
页数：2
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