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Spin Hall effect in a two-dimensional electron gas in the presence of a magnetic field

机译:磁场作用下二维电子气中的自旋霍尔效应

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摘要

We study the spin Hall effect of a two-dimensional electron gas in the presence of a magnetic field and both the Rashba and Dresselhaus spin-orbit interactions. We show that the value of the spin Hall conductivity, which is finite only if the Zeeman spin splitting is taken into account, may be tuned by varying the ratio of the in-plane and out-of-plane components of the applied magnetic field. We identify the origin of this behavior with the different role played by the interplay of spin-orbit and Zeeman couplings for in-plane and out-of-plane magnetic-field components.
机译:我们研究了在存在磁场以及Rashba和Dresselhaus自旋轨道相互作用的情况下二维电子气的自旋霍尔效应。我们显示,可以通过改变所施加磁场的平面内分量和平面外分量的比率来调整自旋霍尔电导率的值(仅在考虑Zeeman自旋分裂的情况下才是有限的)。我们用平面内和平面外磁场分量的自旋轨道和塞曼耦合相互作用的不同作用来识别这种行为的起源。

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