Thermodynamically stable vortex structures in thin superconducting disks

被引：2

作者：

Wu, W. M. ^{[1
]}

Sobnack, M. B. ^{[1
]}

Kusmartsev, F. V. ^{[1
]}

机构：

[1] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2008年 / 468卷 / 7-10期

关键词：

vortices; anti-vortices; mesoscopic; magnetization;

D O I：

10.1016/j.physc.2007.11.032

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the formation of thermodynamically stable vortex structures in a small, thin superconducting disk. We formulate the Gibbs free energy of the disk with an arbitrary number of vortices as a function of applied magnetic field and valid at finite temperatures. We minimize the energy to obtain the optimal position of vortices for different applied fields and temperatures. We also analyze the stability of the different vortex states inside the disk and compare our results with available experimental observations. Our results are in very good agreement with experiments. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：684 / 688

页数：5

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