Domain wall solutions for EHM model of crystal: structures with period multiple of four

被引：17

作者：

Dmitriev, SV ^{[1
]}

Abe, K ^{[1
]}

Shigenari, T ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Appl Phys & Chem, Chofu, Tokyo 1828585, Japan

来源：

PHYSICA D-NONLINEAR PHENOMENA | 2000年 / 147卷 / 1-2期

关键词：

one-dimensional model; modulated phase; domain wall; Sine-Gordon equation;

D O I：

10.1016/S0167-2789(00)00158-5

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

For a one-dimensional discrete model of a crystal the form of a moving domain wall in the structure with period multiple of four was derived in the constant amplitude approximation. The energy of the carrying commensurate structure, the width and the energy of the domain wall were expressed in terms of the amplitudes of Fourier harmonics of the carrying commensurate structure. With the use of the result by Ishibashi, the relation between different solutions was established. The applicability and the accuracy of the solutions were tested by comparing them with the numerically obtained exact solutions. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：122 / 134

页数：13

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