Spin Hall Conductivity of a Two-Dimensional Electron Gas with Random Rashba Field
Spin Hall Conductivity of a Two-Dimensional Electron Gas with Random Rashba Field
复制标题
随机 Rashba 场二维电子气的自旋霍尔电导率
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Rataj
中科院分区：
文献类型：
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作者：
A. Dyrdał;M. Rataj
从理论上考虑了具有均匀和随机组分Rashba自旋轨道相互作用的二维电子气体中的自旋霍尔效应。同时还计算了由于Rashba波动引起的散射的松弛时间。结果表明，均匀Rashba耦合分量的存在不仅改变了弛豫时间，而且抑制了随机Rashba场对自旋霍尔电导率的贡献。
Spin Hall e ect in a two-dimensional electron gas with uniform and random components of the Rashba spinorbit interaction is considered theoretically. Relaxation time due to scattering on Rashba uctuations is also calculated. It is shown that the presence of a uniform component of Rashba coupling not only modi es relaxation time, but also suppresses the contribution to the spin Hall conductivity due to random Rashba eld.