Nonlinear surface spin waves on ferromagnetic media with inhomogeneous exchange anisotropy
文献类型：期刊论文
| 作者 | Xu, Y; Xue, DS; Zuo, W; Li, FS |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2003-11-01 |
| 卷号 | 52页码:2896-2900 |
| 关键词 | surface spin waves Landau-Lifshitz equation nonlinear Schrodinger equation soliton |
| ISSN号 | 1000-3290 |
| 英文摘要 | The theory of nonlinear surface spin. waves in pure-exchange semi-infinite ferromagnetic media with inhomogeneous exchange anisotropy has been considered by using the Landau-Lifshitz equation. For partly pinned pure-exchange ferromagnet, the boundary condition for magnatization of this system is derived, and the nonlinear dispersion relation for these waves is obtained. The one-dimensional( stationary wave along the z-direction) and two-dimensional (2D) (travelling wave in the oxy plane) nonlinear Schrodinger equations which are satisfied by the spin-wave envelope amplitude of the magnetization, are derived. It is shown that the amplitude of the magnetization is determined by the 2D nonlinear Schrodinger equation. From this, we predict that the nonlinear excitation on the surface of magnetic materials should be of 2D soliton form. For weakly nonlinear spin waves, the possibility of soliton formation on the basis of 2D nonlinear Schrodinger equation has been discussed in detail. |
| WOS关键词 | ENVELOPE SOLITONS ; FILMS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000186520100043 |
| 出版者 | CHINESE PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/39025]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Xu, Y |
| 作者单位 | 1.Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ China, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Y,Xue, DS,Zuo, W,et al. Nonlinear surface spin waves on ferromagnetic media with inhomogeneous exchange anisotropy[J]. ACTA PHYSICA SINICA,2003,52:2896-2900. |
| APA | Xu, Y,Xue, DS,Zuo, W,&Li, FS.(2003).Nonlinear surface spin waves on ferromagnetic media with inhomogeneous exchange anisotropy.ACTA PHYSICA SINICA,52,2896-2900. |
| MLA | Xu, Y,et al."Nonlinear surface spin waves on ferromagnetic media with inhomogeneous exchange anisotropy".ACTA PHYSICA SINICA 52(2003):2896-2900. |
入库方式： OAI收割
来源：近代物理研究所
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