Charge and spin currents in a three-terminal mesoscopic ring
文献类型：期刊论文
| 作者 | Wang LG ; Chang K ; Chan KS |
| 刊名 | journal of applied physics
 |
| 出版日期 | 2009 |
| 卷号 | 105期号:1页码:art. no. 013710 |
| ISSN号 | 0021-8979 |
| 关键词 | INJECTION SEMICONDUCTORS SPINTRONICS SYSTEMS |
| 通讯作者 | wang lg shenyang univ coll sci shenyang 110044 peoples r china. e-mail address: lgwang@semi.ac.cn |
| 中文摘要 | we theoretically investigate the charge and spin currents in a three-terminal mesoscopic ring in the presence of a uniform and nonuniform rashba spin-orbit interaction (soi). it is shown that a fully spin-polarized charge current and a pure spin current can be generated by tuning the probe voltages and/or the strength of the rashba soi. the charge and spin currents oscillate as the strength of the rashba soi increases induced by the spin quantum interference. the ratio of probe voltages oscillates synchronously with the pure spin current as the strength of the rashba soi increases in a nonuniform rashba ring, while it remains constant in a uniform rashba ring. we demonstrate theoretically that a three-terminal uniform rashba ring can be used as a spin polarizer and/or spin flipper for different spin injections, and a nonuniform rashba ring could allow us to detect the pure spin current electrically. (c) 2009 american institute of physics. [doi 10.1063/1.3054322] |
| 学科主题 | 半导体物理 |
| 资助信息 | nsfc 60525405 city university of hong kong 7002029 shenyang university 20212313 this work was supported by the nsfc grant no. 60525405, city university of hong kong grant (project no. 7002029), and the research initial funding at shenyang university (grant no. 20212313). |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-03-08 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/7419]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Wang LG,Chang K,Chan KS. Charge and spin currents in a three-terminal mesoscopic ring[J]. journal of applied physics,2009,105(1):art. no. 013710. |
| APA | Wang LG,Chang K,&Chan KS.(2009).Charge and spin currents in a three-terminal mesoscopic ring.journal of applied physics,105(1),art. no. 013710. |
| MLA | Wang LG,et al."Charge and spin currents in a three-terminal mesoscopic ring".journal of applied physics 105.1(2009):art. no. 013710. |
入库方式： OAI收割
来源：半导体研究所
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。