Rashba-induced transverse pure spin currents in a four-terminal quantum dot ring
文献类型：期刊论文
| 作者 | W. J. Gong ; Y. Han ; G. Z. Wei |
| 刊名 | Solid State Communications
 |
| 出版日期 | 2009 |
| 卷号 | 149期号:41-42页码:1831-1835 |
| 关键词 | Quantum dot Rashba interaction Pure spin current transport |
| ISSN号 | 0038-1098 |
| 中文摘要 | By applying a local Rashba spin-orbit interaction to an individual quantum dot of a four-terminal four-quantum-dot ring and introducing a finite bias between the longitudinal terminals, we theoretically investigate the charge and spin currents in the transverse terminals. It is found that when the quantum dot levels are separate from the chemical potentials of the transverse terminals, notable pure spin currents appear in the transverse terminals with the same amplitude but opposite polarization directions. In addition, the polarization directions of such pure spin currents can be inverted by altering the structure parameters, i.e., the magnetic flux, the bias voltage, and the values of quantum dot levels with respect to the chemical potentials of the transverse terminals. (C) 2009 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31933]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | W. J. Gong,Y. Han,G. Z. Wei. Rashba-induced transverse pure spin currents in a four-terminal quantum dot ring[J]. Solid State Communications,2009,149(41-42):1831-1835. |
| APA | W. J. Gong,Y. Han,&G. Z. Wei.(2009).Rashba-induced transverse pure spin currents in a four-terminal quantum dot ring.Solid State Communications,149(41-42),1831-1835. |
| MLA | W. J. Gong,et al."Rashba-induced transverse pure spin currents in a four-terminal quantum dot ring".Solid State Communications 149.41-42(2009):1831-1835. |
入库方式： OAI收割
来源：金属研究所
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