Current-loop model for the intermediate state of type-I superconductors

被引：40

作者：

Goldstein, RE ^{[1
]}

Jackson, DP ^{[1
]}

Dorsey, AT ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT PHYS,CHARLOTTESVILLE,VA 22901

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.76.3818

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A theory is developed of the intricately fingered patterns of flux domains observed in the intermediate state of thin type-I superconductors. The patterns are shown to arise from the competition between the long-range Biot-Savart interactions of the Meissner currents encircling each region and the superconductor-normal surface energy. The energy of a set of such domains is expressed as a nonlocal functional of the positions of their boundaries, and a simple gradient flow in configuration space yields branched flux domains qualitatively like those seen in experiment. Connections with pattern formation in amphiphilic monolayers and magnetic fluids are emphasized.

引用

页码：3818 / 3821

页数：4

共 35 条

[1]

ABRIKOSOV AA, 1988, FUNDAMENTALS THEORY, P479

[2] PHASE-TRANSITIONS IN LANGMUIR MONOLAYERS OF POLAR-MOLECULES [J].