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Spin Transport in the Presence of Rashba Interaction |
| WANG Jing, WU Chang-Qin |
| Department of Physics, Fudan University, Shanghai 200433 |
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| Cite this article: |
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WANG Jing, WU Chang-Qin 2008 Chin. Phys. Lett. 25 3001-3004 |
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Abstract A Gaussian type spin-polarized electronic wave packet is constructed to investigate the spin transport behaviour in an infinite two-dimensional electron gas system with Rashba spin--orbit (SO) interaction by solving the Schrödinger equation exactly. In the presence of Rashba SO interaction, the spin-dependent force induces a momentum dependent splitting of the two spin directions, the average spin current indicates the corresponding spin accumulation clearly. Furthermore, the coherence of the injected spin-polarized wave packet, as well as the transverse force, decays during the motion in the Rashba SO regime.
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71.70.Ej
73.23.-b
85.75.-d
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Received: 25 November 2007
Published: 25 July 2008
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| PACS: |
71.70.Ej
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(Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)
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73.23.-b
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(Electronic transport in mesoscopic systems)
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85.75.-d
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(Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)
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