Charge and Spin Currents Generated by Dynamical Spins

Charge and Spin Currents Generated by Dynamical Spins
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动态自旋产生的电荷和自旋电流

DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
G. Tatara
G. Tatara
中科院分区:
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文献类型:
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作者:
A. Takeuchi;G. Tatara

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我们从理论上证明,在微扰状态下存在自旋轨道相互作用的情况下,电荷电流和自旋电流是由自旋动力学产生的。我们考虑一般的自旋轨道相互作用,包括空间不均匀的情况。自旋阻尼引起的自旋电流被认为是产生电荷电流的来源之一,但还存在其他贡献,例如由于感应保守场而产生的自旋电流以及由于自旋轨道相互作用的不均匀性而产生的自旋电流。
We demonstrate theoretically that a charge current and a spin current are generated by spin dynamics in the presence of spin–orbit interaction in the perturbative regime. We consider a general spin–orbit interaction including the spatially inhomogeneous case. Spin current due to spin damping is identified as one origin of generated charge current, but other contributions exist, such as the one due to an induced conservative field and the one arising from the inhomogeneity of spin–orbit interaction.