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

doi:10.1063/5.0030880

IMR OpenIR

	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
通讯作者	Zhao, Xiaotian(xtzhao@imr.ac.cn)
	2020-11-30
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	117 期号:22 页码:5
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.
资助者	State Key Project of Research and Development of China ; National Nature Science Foundation of China
DOI	10.1063/5.0030880
收录类别	SCI
语种	英语
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
WOS类目	Physics, Applied
WOS记录号	WOS:000595819900001
出版者	AMER INST PHYSICS
引用统计	被引频次：17[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/321006/141414
专题	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.