Robust impurity-scattering spin Hall effect in a two-dimensional electron gas
Robust impurity-scattering spin Hall effect in a two-dimensional electron gas
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DOI：
10.1103/physrevb.82.121310
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发表时间：
2010-09-28
影响因子：
3.7
通讯作者：
Barnas, J.
中科院分区：
文献类型：
--
作者：
Dugaev, V. K.;Inglot, M.;Barnas, J.
本文提出了一种具有空间随机Rashba自旋轨道相互作用的二维电子气中的自旋霍尔效应机制。基于Kubo形式和动力学方程的计算表明，与恒定自旋轨道耦合相比，在无规自旋轨道场中的自旋霍尔电导率并不完全被潜在杂质散射所抑制.因此，本征自旋霍尔效应是存在的，然而，非普适的。
We propose a mechanism of spin Hall effect in two-dimensional electron gas with spatially random Rashba spin-orbit interaction. The calculations based on the Kubo formalism and kinetic equation show that in contrast to the constant spin-orbit coupling, spin Hall conductivity in the random spin-orbit field is not totally suppressed by the potential impurity scattering. Therefore, the intrinsic spin Hall effect exists being, however, nonuniversal.