Effect of optical phonon-magnon interaction on the magnon life-time at finite temperature
文献类型：期刊论文
| 作者 | Cheng TaiMin2; Luo HongChao2; Li Lin1 |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2008 |
| 卷号 | 57期号:10页码:6531-6539 |
| 关键词 | SPIN MANGANITES ZONE EXCITATION optical mode phonon-magnon interaction magnon damping magnon life-time insulating double square-lattice ferromagnetic system |
| ISSN号 | 1000-3290 |
| 其他题名 | Effect of optical phonon-magnon interaction on the magnon life-time at finite temperature |
| 英文摘要 | A magnon-phonon interaction model is set up in a two-dimensional ferromagnetic double square-lattice system. By using the Matsubara Green function theory we have studied the magnon life-time of the system, calculated the magnon damping curves on the main symmetric line in the Brillouin zone, compared the influences of magnetic ion optical-mode phonon and non-magnetic ion optical-mode phonon on the magnon damping of the system, and discussed the influences of the parameter variations and temperature on the magnon damping. The results show that the coupling of the optical-mode phonon and magnon plays the main role in the magnon damping, especially, the longitudinal optical-mode phonon contributes the most for the magnon damping. It is also found that the effect of the nonmagnetic ion on magnon damping is more significant than that of the magnetic ion. According to the expression - Im Sigma*((1)) (k) = (h) over bar/(2 tau), the magnon life-time is discussed. |
| 资助项目 | [National Natural Science Foundation of China] ; [Natural Science Foundation of Liaoning Province and Shenyang City, China] ; [Scientific Research Foundation of the Educational Bureau of Liaoning Province, China] |
| 语种 | 英语 |
| CSCD记录号 | CSCD:3462251 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/156994]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.东北大学 2.中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Cheng TaiMin,Luo HongChao,Li Lin. Effect of optical phonon-magnon interaction on the magnon life-time at finite temperature[J]. ACTA PHYSICA SINICA,2008,57(10):6531-6539. |
| APA | Cheng TaiMin,Luo HongChao,&Li Lin.(2008).Effect of optical phonon-magnon interaction on the magnon life-time at finite temperature.ACTA PHYSICA SINICA,57(10),6531-6539. |
| MLA | Cheng TaiMin,et al."Effect of optical phonon-magnon interaction on the magnon life-time at finite temperature".ACTA PHYSICA SINICA 57.10(2008):6531-6539. |
入库方式： OAI收割
来源：金属研究所
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