Enhanced Spin-Orbit Torque and Low Critical Current Density in Pt100-xRux[CoNi]/Ru Multilayer for Spintronic Devices

doi:10.1021/acsami.1c17653

IMR OpenIR

	Enhanced Spin-Orbit Torque and Low Critical Current Density in Pt100-xRux[CoNi]/Ru Multilayer for Spintronic Devices
	Ju, Hongzhan 1,2; Zhao, Xiaotian 1; Liu, Wei 1; Song, Yuhang 1,2; Liu, Long 1,2; Ma, Jun 1,2; Li, Yang 1; Wu, Jinxiang 1,2; Zhang, Zhidong 1
通讯作者	Liu, Wei(wliu@imr.ac.cn)
	2021-12-29
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	13 期号:51 页码:61742-61750
摘要	Using a heavy-metal (HM) alloy layer in spin-orbit torque (SOT)-based devices is an effective method for obtaining a high current-spin conversion efficiency theta(SH). In this work, SOT-based spintronic devices with a Pt100-xAux-alloyed HM layer are studied by applying harmonic Hall measurements and magneto-optical Kerr effect microscopy to detect the theta(SH) and to observe the process of current-induced magnetization switching. Both the highest theta(SH) of 0.132 and the lowest critical current density (J(c)) of 8 X 10(5) A/cm(2) are realized in a device with x = 20, which satisfies the high SOT efficiency and low energy consumption simultaneously. The interfacial Dzyaloshinskii-Moriya interaction can be overcome by increasing the in-plane assist field. Meanwhile, the minimum in-plane field required for current-induced complete switching can be reduced to +/- 60 Oe. Our study reveals that using the Pt-Ru alloyed HM layer is an effective route for SOT application with enhanced performance.
关键词	alloyed heavy metal spin-orbit torque current-induced magnetization switching domain wall movements spin Hall effect
资助者	State Key Project of Research and Development of China ; National Natural Science Foundation of China
DOI	10.1021/acsami.1c17653
收录类别	SCI
语种	英语
资助项目	State Key Project of Research and Development of China[2017YFA0206302] ; National Natural Science Foundation of China[52031014] ; National Natural Science Foundation of China[51771198] ; National Natural Science Foundation of China[51971219] ; National Natural Science Foundation of China[51801212]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000752979800091
出版者	AMER CHEMICAL SOC
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/173425
专题	中国科学院金属研究所
通讯作者	Liu, Wei
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Ju, Hongzhan,Zhao, Xiaotian,Liu, Wei,et al. Enhanced Spin-Orbit Torque and Low Critical Current Density in Pt100-xRux[CoNi]/Ru Multilayer for Spintronic Devices[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(51):61742-61750.
APA	Ju, Hongzhan.,Zhao, Xiaotian.,Liu, Wei.,Song, Yuhang.,Liu, Long.,...&Zhang, Zhidong.(2021).Enhanced Spin-Orbit Torque and Low Critical Current Density in Pt100-xRux[CoNi]/Ru Multilayer for Spintronic Devices.ACS APPLIED MATERIALS & INTERFACES,13(51),61742-61750.
MLA	Ju, Hongzhan,et al."Enhanced Spin-Orbit Torque and Low Critical Current Density in Pt100-xRux[CoNi]/Ru Multilayer for Spintronic Devices".ACS APPLIED MATERIALS & INTERFACES 13.51(2021):61742-61750.