Vortex pinning by inhomogeneities in type-II superconductors

被引：47
|
作者：
Chapman, SJ [1 ]
Richardson, G [1 ]
机构：
[1] UNIV SUSSEX,SCH MATH SCI,BRIGHTON BN1 9QH,E SUSSEX,ENGLAND
来源：
PHYSICA D | 1997年 / 108卷 / 04期
关键词：
superconductivity; vortex; pinning; impurity; Ginzburg-Landau;
D O I：
10.1016/S0167-2789(97)00053-5
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The methods of formal matched asymptotics are used to examine the motion of a curvilinear vortex in an inhomogeneous type-II superconducting material in the limit as the vortex core radius tends to zero. The resulting law of motion indicates that the logarithm of the equilibrium density of the superconducting electrons acts as a pinning potential for the vortex, so that vortices will be attracted by impurities in the superconducting material.
引用
收藏
页码：397 / 407
页数：11
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