A Green's function model for ferromagnetism and spin excitations of (Ga, Mn)As diluted magnetic semiconductors
文献类型：期刊论文
| 作者 | Liu, GB ; Liu, BG |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2009 |
| 卷号 | 18期号:11页码:5047 |
| 关键词 | MAGNETOTRANSPORT PROPERTIES TRANSPORT-PROPERTIES EXCHANGE INTERACTION CURIE-TEMPERATURE 1ST PRINCIPLES (GA MN ZN1-XCRXTE GAMNAS FILMS MN)AS |
| ISSN号 | 1674-1056 |
| 通讯作者 | Liu, BG: Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We study (Ga, Mn)As diluted magnetic semiconductors in terms of the Ruderman-Kittel-Kasuya-Yosida quantum spin model in Green's function approach. Random distributions of the magnetic atoms are treated by using an analytical average of magnetic configurations. Average magnetic moments and spin excitation spectra as functions of temperature can be obtained by solving self-consistent equations, and the Curie temperature T(C) is given explicitly. T(C) is proportional to magnetic atomic concentration, and there exists a maximum for T(C) as a function of carrier concentration. Applied to (Ga, Mn)As, the theoretical results are consistent with experiment and the experimental T(C) can be obtained with reasonable parameters. This modelling can also be applied to other diluted magnetic semiconductors. |
| 收录类别 | SCI |
| 资助信息 | National Nature Science Foundation of China [10774180, 90406010, 6062109]; Chinese Academy of Sciences for Key Topics in Innovation Engineering [KJCX2.YW.W09-5]; National Basic Research Program of China [2005CB623602] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/32925]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu, GB,Liu, BG. A Green's function model for ferromagnetism and spin excitations of (Ga, Mn)As diluted magnetic semiconductors[J]. CHINESE PHYSICS B,2009,18(11):5047. |
| APA | Liu, GB,&Liu, BG.(2009).A Green's function model for ferromagnetism and spin excitations of (Ga, Mn)As diluted magnetic semiconductors.CHINESE PHYSICS B,18(11),5047. |
| MLA | Liu, GB,et al."A Green's function model for ferromagnetism and spin excitations of (Ga, Mn)As diluted magnetic semiconductors".CHINESE PHYSICS B 18.11(2009):5047. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。