| Persistent spin current in a quantum wire with weak Dresselhaus spin——orbit coupling |
| |
| 引用本文： | 盛威,王羿,周光辉. Persistent spin current in a quantum wire with weak Dresselhaus spin——orbit coupling[J]. 中国物理, 2007, 16(2): 533-536. DOI: 10.1088/1009-1963/16/2/041 |
| |
| 作者姓名： | 盛威 王羿 周光辉 |
| |
| 作者单位： | (1)Department of Physics, Hunan NormalUniversity, Changsha 410081, China; (2)Department of Physics, Hunan NormalUniversity, Changsha 410081, China;International Centre forMaterials Physics, Chinese Academy of Sciences, Shenyang 110015, China |
| |
| 基金项目： | Project supported by the NationalNatural Science Foundation of China (Grant No 10574042) and theScientific Research Fund of Hunan ProvincialEducation Department (Grant No 04A031). |
| |
| 摘 要： | The spin current in a parabolically confined semiconductorheterojunction quantum wire with Dresselhaus spin--orbit coupling istheoretically studied by using the perturbation method. The formulaeof the elements for linear and angular spin current densities arederived by using the recent definition for spin current based on spincontinuity equation. It is found that the spin current in thisDresselhaus spin--orbit coupling quantum wire is antisymmetrical,which is different from that in Rashba model due to the difference insymmetry between these two models. Some numerical examples for theresult are also demonstrated and discussed.
|
| 关 键 词： | 半导体异质结 量子线 持续自旋电流 弱Dresselhaus自旋-轨道耦合 |
| 收稿时间： | 2006-07-05 |
| 修稿时间： | 2006-07-052006-08-31 |
Persistent spin current in a quantum wire with weak Dresselhaus spin--orbit coupling |
| |
| Sheng Wei,Wang Yi and Zhou Guang-Hui. Persistent spin current in a quantum wire with weak Dresselhaus spin--orbit coupling[J]. Chinese Physics, 2007, 16(2): 533-536. DOI: 10.1088/1009-1963/16/2/041 |
| |
| Authors: | Sheng Wei Wang Yi Zhou Guang-Hui |
| |
| Affiliation: | Department of Physics, Hunan Normal University, Changsha 410081, China; International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China |
| |
| Abstract: | The spin current in a parabolically confined semiconductorheterojunction quantum wire with Dresselhaus spin--orbit coupling istheoretically studied by using the perturbation method. The formulaeof the elements for linear and angular spin current densities arederived by using the recent definition for spin current based on spincontinuity equation. It is found that the spin current in thisDresselhaus spin--orbit coupling quantum wire is antisymmetrical,which is different from that in Rashba model due to the difference insymmetry between these two models. Some numerical examples for theresult are also demonstrated and discussed. |
| |
| Keywords: | semiconductor heterojunction quantum wire Dresslhuaus spin--orbit coupling spin current |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国物理》浏览原始摘要信息 |
|
点击此处可从《中国物理》下载免费的PDF全文 |
