Solitary excitations in one-dimensional ferromagnetic spin chains with biquadratic exchange interaction

被引:2
|
作者
Yu Xiao-Yan [1 ]
Chen Hao [1 ]
机构
[1] S China Normal Univ, Sch Phys & Telecommun Engn, Lab Quantum Informat Technol, Guangzhou 510006, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
biquadratic exchange interaction; elliptic function wave; soliton; HEISENBERG-FERROMAGNET; MONOATOMIC CHAIN; NEAREST-NEIGHBOR; EASY-AXIS; SOLITONS; MODEL; INTEGRABILITY; STATES;
D O I
10.1088/1674-1056/20/12/120509
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
By using the traveling wave method, the solutions of the elliptic function wave and the solitary wave are obtained in a ferromagnetic spin chain with a biquadratic exchange interaction, a single ion anisotropic interaction and an anisotropic nearest neighbour interaction. The effects of the biquadratic exchange interaction and the single ion anisotropic interaction on the properties (width, peak and stability) of the soliton are investigated. It is also found that the effects vary with the strengths of these interactions.
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页数:7
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