Magnetic dynamics driven by the spin current generated via the spin Seebeck effect
Magnetic dynamics driven by the spin current generated via the spin Seebeck effect
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由自旋塞贝克效应产生的自旋电流驱动的磁动力学
DOI：
10.1103/physrevb.83.180401
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发表时间：
2010-12
期刊：
影响因子：
--
通讯作者：
Jamal Berakdar
中科院分区：
文献类型：
--
作者：
Chenglong Jia;Jamal Berakdar
我们考虑了在热梯度下，在开路，自旋塞贝克效应几何形状的导电磁线中的磁性纳米结构的自旋电流驱动的动力学。结果表明，自旋电流散射导致作用在纳米结构上的自旋电流扭矩，并导致进动和位移。散射还导致自旋电化学电势沿着导线的重新分布，导致逆自旋霍尔效应电压相对于热梯度反转的极性反转对称性的破坏。
We consider the spin-current driven dynamics of a magnetic nanostructure in a conductive magnetic wire under a heat gradient in an open circuit, spin Seebeck effect geometry. It is shown that the spin-current scattering results in a spin-current torque acting on the nanostructure and leading to precession and displacement. The scattering leads also to a redistribution of the spin electrochemical potential along the wire resulting in a break of the polarity-reversal symmetry of the inverse spin Hall effect voltage with respect to the heat gradient inversion.