Orthogonal spin-orbit torque-induced deterministic switching in NiO

doi:10.1063/5.0223716

	Orthogonal spin-orbit torque-induced deterministic switching in NiO
	Qiao, Yixiao1 ; Xu, Zhengde1 ; Xu, Zhuo1 ; Yang, Yumeng 1,2; Zhu, Zhifeng1,2
	2024-10-28
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
EISSN	1077-3118
卷号	125 期号:18
发表状态	已发表
DOI	10.1063/5.0223716
摘要	The electrical switching of antiferromagnet (AFM) is very important for the development of ultrafast magnetic random-access memory (MRAM). This task becomes more difficult in antiferromagnetic oxide NiO, which has complex anisotropy. We show that by utilizing two spin-orbit torques (SOTs) from orthogonal currents, one can deterministically switch the magnetic moments of NiO in two electrical distinguishable states that can be read out using the spin Hall magnetoresistance. This deterministic switching relies on the symmetry of SOT on different sublattices, where the sign reversal of magnetic moments leads to constructive torques in the beginning and balanced torques in the end. In addition, we show that the easy-plane anisotropy plays a key role in the switching, which has been ignored in some previous works. The uniform magnetic dynamics in this work provides a clear physical picture in understanding the SOT switching of NiO. Furthermore, the electrical writing and reading function in our device advances the development of AFM-MRAM.
关键词	Antiferromagnetism Magnetic logic devices Magnetic moments Magnetic recording Magnetoresistance MRAM devices Antiferromagnetics Antiferromagnets Deterministics Electrical switching Hall magnetoresistance Magnetic random access memory Orthogonal current Spin orbits Sub-lattices Ultra-fast
URL	查看原文
收录类别	SCI ; EI
语种	英语
资助项目	National Key Research and Development Program of China10.13039/501100012166[2022YFB4401700] ; National Key R&D Program of China[12104301]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:001345847600003
出版者	AIP Publishing
EI入藏号	20244517338591
EI主题词	Anisotropy
EI分类号	1102.2 ; 1103.1 ; 1301.1.2 ; 701.2 Magnetism: Basic Concepts and Phenomena
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/446040
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
通讯作者	Zhu, Zhifeng
作者单位	1.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China 2.Shanghai Engn Res Ctr Energy Efficient & Custom AI, Shanghai 201210, Peoples R China
第一作者单位	信息科学与技术学院
通讯作者单位	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	Qiao, Yixiao,Xu, Zhengde,Xu, Zhuo,et al. Orthogonal spin-orbit torque-induced deterministic switching in NiO[J]. APPLIED PHYSICS LETTERS,2024,125(18).
APA	Qiao, Yixiao,Xu, Zhengde,Xu, Zhuo,Yang, Yumeng,&Zhu, Zhifeng.(2024).Orthogonal spin-orbit torque-induced deterministic switching in NiO.APPLIED PHYSICS LETTERS,125(18).
MLA	Qiao, Yixiao,et al."Orthogonal spin-orbit torque-induced deterministic switching in NiO".APPLIED PHYSICS LETTERS 125.18(2024).