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Optical response of ferromagnetic materials induced by a spin gauge field at the second order

机译:二阶旋转仪场诱导铁磁材料的光学响应

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摘要

Optical responses of ferromagnetic materials with spin gauge field that drives intrinsic spin current is theoretically studied. The conductivity tensor is calculated based on a linear response theory to the applied electric field taking account of the nonlinear effects of the spin gauge field to the second order. We consider the case where the spin gauge field is uniform, realized for spiral magnetization structure or uniform spin-orbit interaction. The spin gauge field, or an intrinsic spin current, turns out to give rise to anisotropic optical responses, which is expected to be useful for experimental detection of magnetization structures.
机译:理论上研究了驱动内在旋转电流的旋转仪器领域铁磁材料的光学响应。基于对所施加的电场的线性响应理论来计算导电性张量,以考虑旋转量段场到二阶的非线性效应。我们考虑旋转量域是均匀的情况,实现螺旋磁化结构或均匀的旋转轨道相互作用。旋转量域或内在旋转电流结果导致各向异性光学响应,这预计将可用于磁化结构的实验检测。

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  • 来源
    《Physical review》 |2020年第17期|174439.1-174439.8|共8页
  • 作者

    E. Karashtin; Gen Tatara;

  • 作者单位

    Institute for Physics of Microstructures RAS GSP-105 603950 Nizhny-Novgorod Russia and University of Nizhny Novgorod 23 Prospekt Gagarina 603950 Nizhny Novgorod Russia;

    RIKEN Center for Emergent Matter Science (CEMS) 2-1 Hirosawa Wako Saitama 351-0198 Japan;

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