半导体自旋的超快动力学研究  

Ultrafast spin dynamics in semiconductors

作　　者：崔云鹏 毕芷瑄 杨鲁懿 CUI Yunpeng;BI Zhixuan;YANG Luyi(Department of Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学物理系,北京100084

出　　处：《物理实验》2024年第8期1-10,共10页Physics Experimentation

基　　金：国家自然科学基金项目:No.12074212;国家自然科学基金项目:No.12361141826

摘　　要：半导体自旋电子学是凝聚态物理中的重要研究内容,深入了解半导体中的自旋动力学过程对于推动新一代自旋电子学器件的发展至关重要.时间分辨的磁光法拉第和克尔转角技术是探究自旋动力学的实验方法,被广泛应用于对自旋极化和自旋弛豫等物理过程的研究.本文介绍了时间分辨磁光法拉第和克尔转角的实验原理及在热门半导体自旋电子学材料中相关的实验进展,旨在激发学生对半导体自旋电子学和自旋超快动力学的研究兴趣,促进学生对该领域的深入探索.Semiconductor spintronics is an important research area in condensed matter physics,as understanding spin dynamics in semiconductors is vital for the advancement of novel spintronic devices.Time-resolved magneto-optical Faraday and Kerr rotation spectroscopy are the key experimental methods to study these dynamics,which has been extensively applied to investigate spin polarization and spin relaxation in various semiconductors.This article provided an introduction on the fundamental principles of time-resolved magneto-optical Faraday and Kerr rotation spectroscopy and highlighted a few significant studies in both well-known and novel semiconductors.The aim was to inspire students’interest in semiconductor spintronics and ultrafast spin dynamics,and to encourage further exploration in this exciting field.

关 键 词：半导体 自旋电子学 超快光学 磁光效应 自旋弛豫机制 

分 类 号：TN36[电子电信—物理电子学]