Dissipative dynamics of solitons in planar ferromagnets

被引：5
|
作者：
Dziarmaga, J
机构：
[1] Department of Mathematical Sciences, University of Durham, Durham, DH1 3LE, South Road
来源：
PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.79.2129
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Dynamics of magnetic bubbles in planar ferromagnets described by the Landau-Lifshitz equation with dissipation is analyzed. The pure O(3) sigma model has static multisoliton solutions, characterized by a number of parameters. The parameters describe a finite-dimensional manifold. A small perturbation of energy functional with respect to the sigma model forces solitons to move, Multisoliton dynamics is effectively reduced to a flow on the parameter space.
引用
收藏
页码：2129 / 2132
页数：4
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