Detection of spin bias in a four-terminal quantum-dot ring
文献类型：期刊论文
| 作者 | W. J. Gong ; H. Li ; Y. Han ; G. Z. Wei |
| 刊名 | Physics Letters A
 |
| 出版日期 | 2011 |
| 卷号 | 375期号:10页码:1333-1338 |
| 关键词 | Quantum dot Spin bias Rashba interaction Charge current spintronics transport |
| ISSN号 | 0375-9601 |
| 中文摘要 | In this work, via introducing local Rashba spin-orbit interaction in a four-terminal quantum-dot (QD) ring, we show that the spin bias in the transverse terminals induces apparent charge currents in the longitudinal terminals, accompanied by the similar magnitude and opposite directions of them. The reason is that the Rashba interaction destroys the space-reversal symmetry of this structure and causes the spin dependence of the quantum interference. Then the opposite-spin currents driven by the spin bias present different magnitudes, which gives rise to the emergence of finite charge currents in the longitudinal terminals. Via these results, we suggest that the spin bias can be measured by observing the longitudinal charge currents, which provides an electrical but practical scheme to detect the spin bias (or spin current). (C) 2011 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30350]  |
| 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,H. Li,Y. Han,et al. Detection of spin bias in a four-terminal quantum-dot ring[J]. Physics Letters A,2011,375(10):1333-1338. |
| APA | W. J. Gong,H. Li,Y. Han,&G. Z. Wei.(2011).Detection of spin bias in a four-terminal quantum-dot ring.Physics Letters A,375(10),1333-1338. |
| MLA | W. J. Gong,et al."Detection of spin bias in a four-terminal quantum-dot ring".Physics Letters A 375.10(2011):1333-1338. |
入库方式： OAI收割
来源：金属研究所
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