Recent progress on measurement of spin–charge interconversion in topological insulators using ferromagnetic resonance
Recent progress on measurement of spin–charge interconversion in topological insulators using ferromagnetic resonance
复制标题
DOI：
10.1063/5.0049887
复制
发表时间：
2021-06
期刊：
影响因子：
6.1
通讯作者：
Rik Dey;A. Roy;L. F. Register;S. Banerjee
中科院分区：
文献类型：
--
作者：
Rik Dey;A. Roy;L. F. Register;S. Banerjee
材料中的自旋轨道耦合（SOC）在自旋电流和充电电流之间的相互转换中起着至关重要的作用。在尺寸减小的情况下，SOC 效应得到增强，并因其新颖的自旋相关现象及其在新自旋电子器件中的潜在开发而成为密集实验和理论研究的焦点。由于一系列二维材料的发现，人们进行了广泛的研究来探索潜在的材料系统，以实现高自旋电荷相互转换率以及允许检测和精确测量。本文回顾了拓扑绝缘体作为有效自旋-电荷相互转换的可靠材料系统的前景，以及分别通过自旋力矩铁磁共振和自旋泵浦技术检测拓扑绝缘体表面上的电荷-自旋和自旋-电荷转换的最新实验进展。
Spin–orbit coupling (SOC) in materials plays a crucial role in interconversion between spin and charge currents. In reduced dimensions, SOC effects are enhanced and have been the focus of intensive experimental and theoretical research, both for their novel spin-dependent phenomena and for their potential exploitation in new spintronics devices. Thanks to the discovery of a family of two-dimensional materials, extensive research has been conducted to explore potential material systems to achieve high spin–charge interconversion rates as well as to allow detection and accurate measurement. This article reviews the prospect of topological insulators as a reliable material system for efficient spin–charge interconversion and recent experimental advances in detecting the charge-to-spin and spin-to-charge conversions on topological insulator surfaces via spin-torque ferromagnetic resonance and spin-pumping techniques, respectively.