MOVING INTERFACES IN RANDOM ISING MAGNETS

被引：2
|
作者：
LESCHHORN, H
机构：
[1] Theoretische Physik III, Ruhr-Universität Bochum
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷
关键词：
D O I：
10.1016/0304-8853(92)90810-B
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dynamic behaviour of an interface between spin-up and spin-down domains in a random magnet is studied by a stochastic differential equation, with terms corresponding to an external driving field, interface elasticity, and a (quenched) random background field. For driving fields F smaller than a threshold field F(c) the interface is pinned, i.e. the velocity upsilon = 0. F(c) and upsilon near the threshold field are analytically calculated within a discretized mean field theory. The results are compared with computer simulations.
引用
收藏
页码：309 / 310
页数：2
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