Solitons in a uniaxial anisotropic Heisenberg spin chain with Gilbert damping in an external magnetic field
文献类型：期刊论文
| 作者 | Huang, NN; Liu, WM; Liu, WM , ACAD SINICA, INST THEORET PHYS, POB 2735, BEIJING 100080, PEOPLES R CHINA.; Wang, XB; Pu, FC |
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 1997 |
| 卷号 | 55期号:2页码:1375-1394 |
| 关键词 | Landau-lifschitz Equation Nonlinear Schrodinger-equation Riemann Boundary-problem Inverse Scattering Problem One-dimensional Magnets Easy-plane Ferromagnetic Chains Magnon Localization Excitations Dynamics |
| ISSN号 | 1063-651X |
| 英文摘要 | Using the stereographic projection of the unit sphere of the spin field onto a complex plane for the equations of motion in a uniaxial anisotropic Heisenberg spin chain with Gilbert damping in an external magnetic field, the effect of the magnetic field for the integrability of the system is discussed. The effect of the Gilbert damping is also analyzed. Then, introducing an auxiliary parameter, the Lax equations for the Darboux matrices are generated recursively. The Jest solutions satisfy the corresponding Lax equations if constants are suitably chosen. The exact soliton solutions are then investigated. These results show that the solitary waves depend essentially on two velocities that describe a spin configuration deviated from a homogeneous magnetization, while the depths and widths of surface of solitary waves vary periodically with time. The center of an inhomogeneity moves with a constant velocity, while the shape of a soliton also changes with another constant velocity and it is not symmetrical with respect to the center. The z component of the total magnetic momentum and the total magnetic momentum vary with time. The asymptotic behavior of multisoliton solutions is also given. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12514]  |
| 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 , ACAD SINICA, INST THEORET PHYS, POB 2735, BEIJING 100080, PEOPLES R CHINA. |
| 推荐引用方式 GB/T 7714 | Huang, NN,Liu, WM,Liu, WM , ACAD SINICA, INST THEORET PHYS, POB 2735, BEIJING 100080, PEOPLES R CHINA.,et al. Solitons in a uniaxial anisotropic Heisenberg spin chain with Gilbert damping in an external magnetic field[J]. PHYSICAL REVIEW E,1997,55(2):1375-1394. |
| APA | Huang, NN,Liu, WM,Liu, WM , ACAD SINICA, INST THEORET PHYS, POB 2735, BEIJING 100080, PEOPLES R CHINA.,Wang, XB,&Pu, FC.(1997).Solitons in a uniaxial anisotropic Heisenberg spin chain with Gilbert damping in an external magnetic field.PHYSICAL REVIEW E,55(2),1375-1394. |
| MLA | Huang, NN,et al."Solitons in a uniaxial anisotropic Heisenberg spin chain with Gilbert damping in an external magnetic field".PHYSICAL REVIEW E 55.2(1997):1375-1394. |
入库方式： OAI收割
来源：理论物理研究所
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