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题名: Nonlinear dynamics of the magnetization in an anisotropic ferromagnet with a magnetic field
作者: Liu, WM ;  Wang, XB ;  Pu, FC ;  Huang, NN
刊名: PHYSICAL REVIEW E
出版日期: 1996
卷号: 54, 期号:5, 页码:4612-4625
关键词: LANDAU-LIFSCHITZ EQUATION ;  RIEMANN BOUNDARY-PROBLEM ;  LINEAR SCHRODINGER-EQUATION ;  INVERSE SCATTERING PROBLEM ;  CONTINUUM SPIN SYSTEM ;  EASY-PLANE ;  DARBOUX TRANSFORMATION ;  SOLITON-SOLUTIONS ;  CHAIN ;  EXCITATIONS
学科分类: Physics
通讯作者: Liu, WM , CHINESE ACAD SCI,INST THEORET PHYS,POB 2735,BEIJING 100080,PEOPLES R CHINA.
部门归属: CHINA CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100080,PEOPLES R CHINA; CHINESE ACAD SCI,INST PHYS,BEIJING 100080,PEOPLES R CHINA; GUANGZHOU TEACHERS COLL,DEPT PHYS,GUANGZHOU 510400,PEOPLES R CHINA; WUHAN UNIV,DEPT PHYS,WUHAN 430072,PEOPLES R CHINA
英文摘要: Introducing a particular parameter in the equations of motion for the magnetization in an anisotropic ferromagnet with a magnetic field, the Lax equations for Darboux matrices are generated recursively, the Jost solutions are satisfied the corresponding Lax equations, and the nonlinear dynamics of the magnetization are investigated. The results show that the solitary waves depend essentially on two velocities which describe a spin configuration deviating from a homogeneous magnetization. The center of inhomogeneity moves with a constant velocity, while the shape of solitary waves also changes with another velocity. The depths and widths of surface of solitary waves vary periodically with time, meanwhile its shapes are not symmetrical with respect to the center. The z component of the total magnetic moment and the total magnetic moment are not constants. The asymptotic behavior of multisoliton solutions is also analyzed.
收录类别: SCI
原文出处: 查看原文
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12563
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Liu, WM,Wang, XB,Pu, FC,et al. Nonlinear dynamics of the magnetization in an anisotropic ferromagnet with a magnetic field[J]. PHYSICAL REVIEW E,1996,54(5):4612-4625.
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