自旋电子学
哈密顿量(控制论)
拉希巴效应
自旋轨道相互作用
场效应晶体管
半导体
单层
自旋(空气动力学)
物理
密度泛函理论
材料科学
凝聚态物理
晶体管
纳米技术
铁磁性
量子力学
电压
数学
数学优化
热力学
作者
Jiajia Chen,Kai Wu,Wei Hu,Jinlong Yang
标识
DOI:10.1021/acs.jpclett.1c03662
摘要
This theoretical Perspective reviews spin-orbit coupling (SOC), including the Rashba effect and Dresselhaus effect, in two-dimensional (2D) semiconductors. We first introduce the origin of the Rashba effect and Dresselhaus effect using the Hamiltonian models; we then summarize 2D Rashba semiconductors predicted by first-principles density functional theory (DFT) calculations, including AB binary monolayers, Janus monolayers, 2D perovskites, and so on. We also review various manipulating techniques of the Rashba effect on 2D semiconductors, such as external electric field, strain engineering, charge doping, interlayer interactions, proximity effect of substrates, and external magnetic field. We then briefly summarize the applications of SOC, including the generation, detection, and manipulation of spin currents in spin Hall effect transistors and spin field effect transistors. Finally, we conclude this Perspective and propose three promising research fields of SOC in low-dimensional semiconductors, including the nonlinear SOC Hamiltonian model, 2D ferroelectric SOC semiconductors, and 1D Rashba model and semiconductors. This theoretical Perspective enriches the fundamental understanding of SOC in 2D semiconductors and will help in the design of new types of spintronic devices in future experiments.
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