Nonlinear magnetization dynamics of the classical ferromagnet with two single-ion anisotropies in an external magnetic field
文献类型：期刊论文
| 作者 | Zhou, X; Liu, WM; Zhang, WS; Pu, FC; Liu, WM , Oak Ridge Natl Lab, Div Solid State, POB 2008, Oak Ridge, TN 37831 USA. |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1999 |
| 卷号 | 60期号:18页码:12893-12911 |
| 关键词 | Heisenberg Spin Chain Landau-lifschitz Equation Inverse Scattering Transform Linear Schrodinger-equation Riemann Boundary-problem Easy-plane Lifshitz Equation Soliton-solutions Equivalence Excitations |
| ISSN号 | 1098-0121 |
| 英文摘要 | By using a stereographic projection of the unit sphere of magnetization vector onto a complex plane for the equations of motion, the effect of an external magnetic field for integrability of the system is discussed. The properties of the Jest solutions and the scattering data are then investigated through introducing transformations other than the Riemann surface in order to avoid double-valued functions of the usual spectral parameter. The exact multisoliton solutions are investigated by means of the Binet-Cauchy formula. The results showed that under the action of an external magnetic field nonlinear magnetization depends essentially on two parameters: its center moves with a constant velocity, while its shape changes with another constant velocity; its amplitude and width vary periodically with time, while its shape is also dependent on time and is unsymmetric with respect to its center. The orientation of the nonlinear magnetization in the plane orthogonal to the anisotropy axis changes with an external magnetic field. The total magnetic momentum and the integral of the motion coincident with its z component depend on time. The mean number of spins derivated from the ground state in a localized magnetic excitations is dependent on time. The asymptotic behavior of multisoliton solutions, the total displacement of center, and the phase shift of the jth peak an also analyzed. [S0163-1829(99)07121-0]. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000083765400054 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13072]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Liu, WM , Oak Ridge Natl Lab, Div Solid State, POB 2008, Oak Ridge, TN 37831 USA. |
| 推荐引用方式 GB/T 7714 | Zhou, X,Liu, WM,Zhang, WS,et al. Nonlinear magnetization dynamics of the classical ferromagnet with two single-ion anisotropies in an external magnetic field[J]. PHYSICAL REVIEW B,1999,60(18):12893-12911. |
| APA | Zhou, X,Liu, WM,Zhang, WS,Pu, FC,&Liu, WM , Oak Ridge Natl Lab, Div Solid State, POB 2008, Oak Ridge, TN 37831 USA..(1999).Nonlinear magnetization dynamics of the classical ferromagnet with two single-ion anisotropies in an external magnetic field.PHYSICAL REVIEW B,60(18),12893-12911. |
| MLA | Zhou, X,et al."Nonlinear magnetization dynamics of the classical ferromagnet with two single-ion anisotropies in an external magnetic field".PHYSICAL REVIEW B 60.18(1999):12893-12911. |
入库方式： OAI收割
来源：理论物理研究所
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