Spin-Orbit Torque-Induced Field-Free Switching of a Perpendicular Antiferromagnet

doi:10.1109/INTERMAGShortPapers58606.2023.10228353

	Spin-Orbit Torque-Induced Field-Free Switching of a Perpendicular Antiferromagnet
	Zhengde Xu; Jie Ren; Zhengping Yuan; Yue Xin; Xue Zhang; Zhifeng Zhu
	2023-02
会议录名称	IEEE INTERNATIONAL MAGNETICS CONFERENCE (2023)
发表状态	已发表
DOI	10.1109/INTERMAGShortPapers58606.2023.10228353
摘要	The field-free spin-orbit torque induced 180° reorientation of perpendicular magnetization is a key step to the development of ultrafast magnetic memory based on the antiferromagnetic material (AFM). In this paper, we propose a trilayer AFM/Insulator/Heavy Metal structure as the AFM memory device and achieve field-free switching by using two orthogonal currents. These two currents provide uniform damping-like torque and stagger field-like torque, respectively. A current density of 1.79×1011A/m2 is sufficient to induce the switching within 40 picoseconds. The device and switching mechanism proposed in this work offer a promising approach to deterministically switch the AFM with perpendicular Néel vector. © 2023 IEEE.
会议举办国	Japan
会议录编者/会议主办者	The IEEE Magnetics Society and the Magnetics Society of Japan
关键词	Spin-orbit torque perpendicular antiferromagnet ultrafast switching two orthogonal currents
会议名称	IEEE INTERNATIONAL MAGNETICS CONFERENCE (2023)
会议地点	Sendai, Japan
会议日期	2023-5
学科领域	信息科学与系统科学 ; 物理学 ; 电子、通信与自动控制技术
学科门类	工学
URL	查看原文
收录类别	EI
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
EI入藏号	20234014826291
EI主题词	Torque
EI分类号	701.2 Magnetism: Basic Concepts and Phenomena ; 708.4 Magnetic Materials ; 722.1 Data Storage, Equipment and Techniques ; 931.2 Physical Properties of Gases, Liquids and Solids
原始文献类型	Conference article (CA)
来源库	IEEE
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/299868
专题	信息科学与技术学院信息科学与技术学院_硕士生信息科学与技术学院_博士生信息科学与技术学院_PI研究组_祝智峰组
作者单位	School of Information Science and Technology, ShanghaiTech University, Shanghai, China
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Zhengde Xu,Jie Ren,Zhengping Yuan,et al. Spin-Orbit Torque-Induced Field-Free Switching of a Perpendicular Antiferromagnet[C]//The IEEE Magnetics Society and the Magnetics Society of Japan:Institute of Electrical and Electronics Engineers Inc.,2023.