NONLINEAR EXCITATIONS IN THE FCC ANTIFERROMAGNET CEAS

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	NONLINEAR EXCITATIONS IN THE FCC ANTIFERROMAGNET CEAS
	W. M. Liu ; B. L. Zhou
刊名	Physics Letters A
	1994
卷号	184 期号:6 页码:487-494
关键词	envelope-function approach anisotropic exchange soliton excitations periodic structures heisenberg chain electrodynamics ferromagnet neutron states
ISSN号	0375-9601
中文摘要	Employing the Dyson-Maleev transformation, the coherent state ansatz and the time-dependent variational principle, we obtain two partial differential equations of motion from the Hamiltonian in the fee antiferromagnet CeAs. By using the multiple scalar method and long-wavelength approximation, we reduce these equations to an envelope function equation, and we force this function to satisfy the nonlinear Schrodinger equation. The single and two soliton bound state solutions are obtained by using the inverse scattering transformation. For the single and two soliton bound state, the spatial configurations of the spin are given. These results show that the nonlinear magnon localization and the two magnon bound state are possible in this system. The possibility of observing a gap soliton is also discussed.
原文出处	://WOS:A1994MW17600023
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/38867]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	W. M. Liu,B. L. Zhou. NONLINEAR EXCITATIONS IN THE FCC ANTIFERROMAGNET CEAS[J]. Physics Letters A,1994,184(6):487-494.
APA	W. M. Liu,&B. L. Zhou.(1994).NONLINEAR EXCITATIONS IN THE FCC ANTIFERROMAGNET CEAS.Physics Letters A,184(6),487-494.
MLA	W. M. Liu,et al."NONLINEAR EXCITATIONS IN THE FCC ANTIFERROMAGNET CEAS".Physics Letters A 184.6(1994):487-494.