Skyrmion-generated spinmotive forces in inversion broken ferromagnets

Skyrmion-generated spinmotive forces in inversion broken ferromagnets
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反转破碎铁磁体中斯格明子产生的自旋势

DOI:
10.1016/j.jmmm.2019.165550
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发表时间:
2019
影响因子:
2.7
通讯作者:
Ieda Jun’ichi
Ieda Jun’ichi
中科院分区:
材料科学3区
文献类型:
--
作者:
Yamane Yuta;Ieda Jun’ichi

文献摘要

相似文献

本文对磁skyrmion的平移运动产生的自旋动力进行了解析研究。SMF指的是由动态磁织构感生的电压,其反映了磁化强度的时空变化。因此,可以通过SMF测量来检测Skyrmion的动态,这可能在未来的Skyrmion技术中发挥重要作用。我们发现依赖的SMF上的skyrmion结构(例如,skyrmion或反skyrmion,尼尔或布洛赫型,和极性的skyrmion核心)和Rashba和Dresselhaus自旋轨道耦合(SOC)。为此,我们推导出明确的公式自旋相关的电场起源于两个SOC。我们的研究结果提供了一个全面的理解的现象和一个给定的实验与移动skyrmion的电压信号的估计。
We present an analytical study on the spinmotive force (SMF) generated by translational motion of magnetic skyrmion. A SMF refers to an electrical voltage induced by dynamical magnetic textures, which reflects the spatiotemporal variation of the magnetization. The dynamics of a skyrmion thus can be detected by a SMF measurement, which may play an important role in future skyrmion-based technologies. We find the dependence of the SMF on skyrmion structure (eg, skyrmion or anti-skyrmion, Neel or Bloch type, and the polarity of the skyrmion core) and Rashba and Dresselhaus spin-orbit couplings (SOCs). To this end, we derive explicit formulae for the spin-dependent electric fields originating from the two SOCs. Our findings offer a comprehensive understanding of the phenomenon and an estimation of the electrical voltage signal associated with a moving skyrmion for a given experiment.