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

doi:10.1088/1674-1056/20/12/120509

Abstract 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.

Keywords: biquadratic exchange interaction elliptic function wave soliton

Received: 15 April 2011
Revised: 17 June 2011
Accepted manuscript online:

PACS:	05.45.Yv	(Solitons)
	05.45.-a	(Nonlinear dynamics and chaos)
	75.10.Hk	(Classical spin models)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10874049) and the State Key Program for Basic Research of China (Grant No. 2007CB925204).

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Yu Xiao-Yan(余小燕) and Chen Hao(陈浩) Solitary excitations in one-dimensional ferromagnetic spin chains with biquadratic exchange interaction 2011 Chin. Phys. B 20 120509

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

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