摘要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.
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.
(Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)
引用本文:
WANG Jing;WU Chang-Qin. Spin Transport in the Presence of Rashba Interaction[J]. 中国物理快报, 2008, 25(8): 3001-3004.
WANG Jing, WU Chang-Qin. Spin Transport in the Presence of Rashba Interaction. Chin. Phys. Lett., 2008, 25(8): 3001-3004.
2008, Vol. 25 
