Coupled Solitons in Alternating Heisenberg Ferromagnetic Chains with a Small Magnon Band Gap

作     者：ZHU Shan-Hua HUANG Guo-Xiang 朱善华;黄国翔

作者机构：Key Laboratory for Optical and Magnetic Resonance Spectroscopy and Department of PhysicsEast China Normal UniversityShanghai 200062 Physics GroupZhuzhou Institute of TechnologyZhuzhou 412008 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2001年第18卷第10期

页      面：1316-1318页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Supported by the Trans-Century Training Programme Foundation for Talents by the Education Ministry and the National Natural Science Foundation of China under Grant No.19975019 

主　　题：Heisenberg soliton magnetic 

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.