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首页> 外文期刊>Physica status solidi, B. Basic research >Spin torque and spin current induced by the Rashba and Dresselhaus couplings inside the domain wall in non-adiabatic transport regime
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Spin torque and spin current induced by the Rashba and Dresselhaus couplings inside the domain wall in non-adiabatic transport regime

机译：非绝热输运状态下畴壁内Rashba和Dresselhaus耦合引起的自旋转矩和自旋电流

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摘要

Spin-orbit induced spin torque and spin current in a smooth domain wall(DW) are theoretically investigated. We have analyzed the effect of the Rashba and Dresselhaus interactions on DW spin torque and spin current in the presence of magnetic impurities within the Boltzmann semi-classical model. It has been previously shown that in the non-equilibrium regime, the Rashba and Dresselhaus couplings can not be responsible for spin-current and both transverse and longitudinal spin-currents identically vanish. In the present work it has been found out that in the case of non-collinear magnetic structures such as DW, Rashba, and Dresselhaus couplings can generate and control both components of the spin current. Results of this investigation verify that the spin current of the DW strongly depends on density of impurities and non-adiabaticity of transport process. In addition results of the current work reveals that manipulation of the DW displacement can be realized by the Rashba and Dresselhaus couplings.
机译：理论研究了自旋轨道在光滑畴壁（DW）中的自旋转矩和自旋电流。我们已经分析了在Boltzmann半经典模型中存在磁性杂质的情况下，Rashba和Dresselhaus相互作用对DW自旋扭矩和自旋电流的影响。先前已经证明，在非平衡状态下，Rashba和Dresselhaus联轴器不能对自旋电流负责，而横向和纵向自旋电流都完全消失。在本工作中，已经发现在非共线磁性结构的情况下，例如DW，Rashba和Dresselhaus耦合器可以生成和控制自旋电流的两个分量。这项研究的结果证明，DW的自旋电流在很大程度上取决于杂质的密度和运输过程的非绝热性。此外，当前工作的结果表明，可以通过Rashba和Dresselhaus联轴器实现DW位移的操纵。

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