Spin waves in a two-sublattice antiferromagnet. A self-similar solution of the Landau-Lifshitz equation

被引：9
|
作者：
Gorobets, Y. I. [1 ]
Gorobets, Y. [1 ,2 ]
Kulish, V. V. [2 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Magnetism, 36-B Vernadskogo St, UA-03142 Kiev, Ukraine
[2] Natl Tech Univ Ukraine, Kyiv Polytech Inst, 37 Perem Prosp, UA-03056 Kiev, Ukraine
来源：
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2017年 / 42卷
关键词：
Spin wave; Antiferromagnet; Self-similar solution; ORDER-PARAMETER; FERROMAGNET; ANISOTROPY; SOLITONS; STATES;
D O I：
10.1016/j.cnsns.2016.05.006
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In the paper, spin waves in a uniaxial two-sublattice antiferromagnet are investigated. A new class of self-similar solutions of the Landau-Lifshitz equation is obtained and, therefore, a new type of spin waves is described. Examples of solutions of the found class are presented. New type of solution admits both linear and non-linear spin waves, including solitons. Space transformations used in the solution are mathematically analogous to the relativistic transformations. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：52 / 61
页数：10
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