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首页> 外文期刊>Physical review. B, Condensed Matter And Materals Physics >Rashba spin precession in quantum-Hall edge channels
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Rashba spin precession in quantum-Hall edge channels

机译:量子霍尔边缘通道中的Rashba自旋进动

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摘要

Quasi-one-dimensional edge channels are formed at the boundary of a two-dimensional electron system subject to a strong perpendicular magnetic field. We consider the effect of Rashba spin-orbit coupling, induced by structural inversion asymmetry, on their electronic and transport properties. Both our analytical and numerical results show that spin-split quantum-Hall edge channels exhibit properties analogous to that of Rashba-split quantum wires. Suppressed backscattering and a long spin lifetime make these edge channels an ideal system for observing voltage-controlled spin precession. Based on the latter, we propose a magnetless spin-dependent electron interferometer.
机译:在经受强垂直磁场的二维电子系统的边界处形成准一维边缘通道。我们考虑了结构倒转不对称引起的Rashba自旋轨道耦合对其电子和传输性质的影响。我们的分析结果和数值结果均表明,自旋分裂量子霍尔边缘通道具有类似于Rashba分裂量子线的特性。抑制的反向散射和长的自旋寿命使这些边缘通道成为观察电压控制自旋进动的理想系统。基于后者,我们提出了一种无磁自旋相关的电子干涉仪。

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