Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer

doi:10.1063/5.0030880

CORC > 金属研究所 > 中国科学院金属研究所

	Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer
	Quan, Jiazhi 1,2; Zhao, Xiaotian 1; Liu, Wei 1; Liu, Long 1,2; Song, Yuhang 1,2; Li, Yang 1,2; Ma, Jun 1,2; Li, Shuqiao 1; Zhao, Xinguo 1; Zhang, Zhidong 1
刊名	APPLIED PHYSICS LETTERS
	2020-11-30
卷号	117 期号:22 页码:5
ISSN号	0003-6951
DOI	10.1063/5.0030880
通讯作者	Zhao, Xiaotian(xtzhao@imr.ac.cn)
英文摘要	Alloying a heavy metal (HM) layer is a useful approach to enhance the current-spin converting efficiency xi (SH) while keeping a relatively low resistance for spin-orbit torque (SOT) based devices. In this work, we report the enhancement of xi (SH) and nonlinear modification of the Dzyaloshinskii-Moriya interaction (DMI) by alloying Pt with Cr in a Pt100-xCrx/Co/AlOx trilayer. The maximum of xi (SH) is found at the composition of Pt75Cr25. At the compositions of Pt75Cr25 and Pt50Cr50, the DMI constant \|D\| is strongly shifted in the opposite sign, implying ferromagnetic coupling and antiferromagnetic coupling existing in the heavy metal layer can both influence the DMI. Finally, the current-driven switching behavior is observed by the magneto-optical effect. This work shows that adjusting the composition of the magnetic alloyed HM layer is an efficient approach to obtain an optimized SOT performance.
资助项目	State Key Project of Research and Development of China[2017YFA0206302] ; National Nature Science Foundation of China[51590883] ; National Nature Science Foundation of China[52031014] ; National Nature Science Foundation of China[51771198] ; National Nature Science Foundation of China[51801212]
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000595819900001
资助机构	State Key Project of Research and Development of China ; National Nature Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/141413]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhao, Xiaotian
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	Quan, Jiazhi,Zhao, Xiaotian,Liu, Wei,et al. Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer[J]. APPLIED PHYSICS LETTERS,2020,117(22):5.
APA	Quan, Jiazhi.,Zhao, Xiaotian.,Liu, Wei.,Liu, Long.,Song, Yuhang.,...&Zhang, Zhidong.(2020).Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer.APPLIED PHYSICS LETTERS,117(22),5.
MLA	Quan, Jiazhi,et al."Enhancement of spin-orbit torque and modulation of Dzyaloshinskii-Moriya interaction in Pt100-xCrx/Co/AlOx trilayer".APPLIED PHYSICS LETTERS 117.22(2020):5.