Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling
We investigate theoretically the spin accumulation in a Rashba spin-orbit coupling quantum wire. Using the scattering matrix approach within the effective free-electron approximation, we have demonstrated the three components of spin polarization. It is found that by a few numerical examples, the tw...
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2008/152731 |
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| _version_ | 1850171546979532800 |
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| author | Xi Fu Wenhu Liao Guanghui Zhou |
| author_facet | Xi Fu Wenhu Liao Guanghui Zhou |
| author_sort | Xi Fu |
| collection | DOAJ |
| description | We investigate theoretically the spin accumulation in a Rashba spin-orbit coupling quantum wire. Using the scattering matrix approach within the effective free-electron approximation, we have demonstrated the three components of spin polarization. It is found that by a few numerical examples, the two peaks for the out-of-plane spin accumulation 〈Sz〉 shift to the edges of quantum wire with the increase of propagation modes. The period of intrinsic oscillations 〈Sx/y〉 inversely proportions to the Rashba SOC strength. This effect may be used to differentiate the intrinsic spin accumulation from the extrinsic one. |
| format | Article |
| id | doaj-art-9a05b452901840e1b34ad2e8a2f1a34d |
| institution | OA Journals |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-9a05b452901840e1b34ad2e8a2f1a34d2025-08-20T02:20:16ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242008-01-01200810.1155/2008/152731152731Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit CouplingXi Fu0Wenhu Liao1Guanghui Zhou2Department of Physics, Hunan Normal University, Changsha, Hunan 410081, ChinaDepartment of Physics, Hunan Normal University, Changsha, Hunan 410081, ChinaDepartment of Physics, Hunan Normal University, Changsha, Hunan 410081, ChinaWe investigate theoretically the spin accumulation in a Rashba spin-orbit coupling quantum wire. Using the scattering matrix approach within the effective free-electron approximation, we have demonstrated the three components of spin polarization. It is found that by a few numerical examples, the two peaks for the out-of-plane spin accumulation 〈Sz〉 shift to the edges of quantum wire with the increase of propagation modes. The period of intrinsic oscillations 〈Sx/y〉 inversely proportions to the Rashba SOC strength. This effect may be used to differentiate the intrinsic spin accumulation from the extrinsic one.http://dx.doi.org/10.1155/2008/152731 |
| spellingShingle | Xi Fu Wenhu Liao Guanghui Zhou Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling Advances in Condensed Matter Physics |
| title | Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling |
| title_full | Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling |
| title_fullStr | Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling |
| title_full_unstemmed | Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling |
| title_short | Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling |
| title_sort | spin accumulation in a quantum wire with rashba spin orbit coupling |
| url | http://dx.doi.org/10.1155/2008/152731 |
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