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首页> 外文期刊>Physical review >Electrical detection of unconventional transverse spin currents in obliquely magnetized thin films
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Electrical detection of unconventional transverse spin currents in obliquely magnetized thin films

机译：倾斜磁化薄膜非传统横向旋流的电气检测

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摘要

In a typical experiment in magnonics. thin films are magnetized in plane and spin waves only carry angular momentum along their spatial propagation direction. Motivated by the experiments of Bozhko el al. [Phys. Rev. Research 2, 023324 (2020)]. we show theoretically that for obliquely magnetized thin films, exchange-dipolar spin waves are accompanied by a transverse spin current. We propose an experiment to electrically detect this transverse spin current with Pt strips on top of an yttrium iron garnet film, by comparing the induced spin current for spin waves with opposite momenta. We predict the relative difference to be of the order 10~(-4), for magnetic fields tilted at least 30 out of plane. This transverse spin current is the result of the long-range dipole-dipole interaction and the inversion symmetry breaking of the interface.
机译：在巨大的玉米型实验中。在平面中磁化薄膜，旋转波仅沿着它们的空间传播方向携带角动量。受到Bozhko El Al的实验的动机。 [物理。 Rev. Research 2,023324（2020）]。我们从理论上显示出用于倾斜磁化的薄膜，交换 - 偶极旋转波伴随着横向旋转电流。我们提出了一种实验，通过比较诱导的旋转电流与相反的动量相反的旋转波的旋转波的旋转电流进行电动检测该横向旋转电流的实验。我们预测磁场倾斜至少30的磁场的相对差异为10〜（-4）。该横向旋转电流是远程偶极子 - 偶极交互的结果和界面的反转对称性断开。

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  • 来源
    《Physical review》 |2020年第22期|220407.1-220407.6|共6页
  • 作者

    Pieter M. Gunnink; Rembert A. Duine; Andreas Rueckriegel;

  • 作者单位

    Institute for Theoretical Physics and Center for Extreme Matter and Emergent Phenomena Utrecht University Leuvenlaan 4 3584 CE Utrecht The Netherlands;

    Institute for Theoretical Physics and Center for Extreme Matter and Emergent Phenomena Utrecht University Leuvenlaan 4 3584 CE Utrecht The Netherlands Department of Applied Physics Eindhoven University of Technology P.O. Box 513 5600 MB Eindhoven The Netherlands;

    Institute for Theoretical Physics and Center for Extreme Matter and Emergent Phenomena Utrecht University Leuvenlaan 4 3584 CE Utrecht The Netherlands;

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