Phonon damping in two-dimensional Heisenberg ferromagnetic system at finite temperature
文献类型：期刊论文
| 作者 | Cheng TaiMin |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2007 |
| 卷号 | 56期号:2页码:1066-1074 |
| 关键词 | DENSITY-OF-STATES INVAR ALLOY LATTICE-DYNAMICS EXCITATION MAGNON FE86CO4ZR10 MAGNETISM MECHANISM FE3PT magnon-phonon interaction transverse acoustic phonon damping longitudinal acoustic phonon damping phonon lifetime |
| ISSN号 | 1000-3290 |
| 其他题名 | Phonon damping in two-dimensional Heisenberg ferromagnetic system at finite temperature |
| 英文摘要 | A magnon-phonon interaction model is developed on the basis of two-dimensional square Heisenberg ferromagnetic system. The transverse acoustic phonon damping and longitudinal acoustic phonon damping are studied through Matsubara Green function theory, and transverse acoustic phonon damping and longitudinal acoustic phonon damping curves are calculated on the main symmetric point and line in the first Brillouin zone. It's found that in the first Brillouin zone, on line A, there is no damping for the transverse acoustic phonon, on line Z, there is no damping for longitudinal acoustic phonon. In the first Brillouin zone, the transverse acoustic phonon damping is one order larger than the longitudinal acoustic phonon damping. The influences of transverse acoustic phonon damping and longitudinal acoustic phonon damping for different parameters on them are also illustrated in this article. According to the relationship between phonon damping and phonon lifetime, and the relationship between phonon damping and phonon density of state, the lifetime and density of state for transverse acoustic phonon and longitudinal acoustic phonon is discussed. |
| 语种 | 英语 |
| CSCD记录号 | CSCD:2792197 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/157796]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Cheng TaiMin. Phonon damping in two-dimensional Heisenberg ferromagnetic system at finite temperature[J]. ACTA PHYSICA SINICA,2007,56(2):1066-1074. |
| APA | Cheng TaiMin.(2007).Phonon damping in two-dimensional Heisenberg ferromagnetic system at finite temperature.ACTA PHYSICA SINICA,56(2),1066-1074. |
| MLA | Cheng TaiMin."Phonon damping in two-dimensional Heisenberg ferromagnetic system at finite temperature".ACTA PHYSICA SINICA 56.2(2007):1066-1074. |
入库方式： OAI收割
来源：金属研究所
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