Coupled solitons in alternating Heisenberg ferromagnetic chains with a small magnon band gap

被引：0
|
作者：
Zhu, SH [1 ]
Huang, GX
机构：
[1] E China Normal Univ, Key Lab Opt & Magnet Resonance Spect, Shanghai 200062, Peoples R China
[2] E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China
[3] Zhuzhou Inst Technol, Phys Grp, Zhuzhou 412008, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2001年 / 18卷 / 10期
关键词：
D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The coupled soliton excitations in an alternating Heisenberg ferromagnetic chain with a small magnon band gap are considered. Based on a quasi-discrete multiple scale approach, a set of coupled mode equations is derived which describes the dynamics of strongly coupled acoustic upper cut-off and optical lower cut-off modes. Coupled magnetic band gap soliton solutions are explicitly provided and their frequency properties are discussed.
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页码：1316 / 1318
页数：3
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