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Control of damping in perpendicularly magnetized thin films using spin-orbit torques

机译：使用旋转轨道扭矩控制垂直磁化薄膜中的阻尼

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摘要

Magnetic damping plays a crucial role in the dynamics of magnetic systems. Hence, control over the damping is highly desirable tor the development of magnetic devices. One of the possible ways to manipulate magnetic damping in a ferromagnetic material is the injection of spin currents generated by the spin Hall effect. The generated spin currents can be used to manipulate magnetic moments as well as the effective damping of the ferromagnetic material. In this paper, we demonstrate that the influence of the spin current on the damping is highly sensitive to the relative direction of the spin polarization and the precessional axis of the magnetization. The observations are important for various applications in magnetic storage devices and in microwave signal processing.
机译：磁阻在磁性系统的动态中起着至关重要的作用。因此，对阻尼的控制是非常理想的磁性装置的发展。操纵铁磁材料中磁性阻尼的可能方法之一是注入由旋转霍尔效应产生的自旋电流。产生的旋转电流可用于操纵磁矩以及铁磁材料的有效阻尼。在本文中，我们证明旋转电流对阻尼的影响对自旋极化的相对方向和磁化的前进轴的相对方向非常敏感。观察结果对于磁存储装置和微波信号处理中的各种应用很重要。

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  • 来源
    《Physical review》 |2020年第22期|224401.1-224401.5|共5页
  • 作者

    S. Saha; P. Flauger; C. Abert; A. Hrabec; Z. Luo; J. Zhou; V. Scagnoli; D. Suess; L. J. Heyderman;

  • 作者单位

    Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich Switzerland Laboratory for Multiscale Materials Experiments Paul Scherrer Institute 5232 Villigen PSI Switzerland;

    Christian Doppler Laboratory of Advanced Magnetic Sensing and Materials Faculty of Physics University of Vienna 1090 Vienna Austria;

    Christian Doppler Laboratory of Advanced Magnetic Sensing and Materials Faculty of Physics University of Vienna 1090 Vienna Austria;

    Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich Switzerland Laboratory for Multiscale Materials Experiments Paul Scherrer Institute 5232 Villigen PSI Switzerland Laboratory for Magnetism and Interface Physics Department of Materials ETH Zurich 8093 Zurich Switzerland;

    Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich Switzerland Laboratory for Multiscale Materials Experiments Paul Scherrer Institute 5232 Villigen PSI Switzerland;

    Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich Switzerland Laboratory for Multiscale Materials Experiments Paul Scherrer Institute 5232 Villigen PSI Switzerland;

    Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich Switzerland Laboratory for Multiscale Materials Experiments Paul Scherrer Institute 5232 Villigen PSI Switzerland;

    Christian Doppler Laboratory of Advanced Magnetic Sensing and Materials Faculty of Physics University of Vienna 1090 Vienna Austria;

    Laboratory for Mesoscopic Systems Department of Materials ETH Zurich 8093 Zurich Switzerland Laboratory for Multiscale Materials Experiments Paul Scherrer Institute 5232 Villigen PSI Switzerland;

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