Modulation of spin-orbit torque induced magnetization switching in Pt/CoFe through oxide interlayers

doi:10.1063/1.5094049

CORC > 金属研究所 > 中国科学院金属研究所

	Modulation of spin-orbit torque induced magnetization switching in Pt/CoFe through oxide interlayers
	Li, Shangkun 1,2; Zhao, Xiaotian 2; Liu, Wei 2; Zhao, Xinguo 2; Zhang, Zhidong 2
刊名	APPLIED PHYSICS LETTERS
	2019-05-27
卷号	114 期号:21 页码:5
ISSN号	0003-6951
DOI	10.1063/1.5094049
通讯作者	Liu, Wei(wliu@imr.ac.cn)
英文摘要	We investigate the spin-orbit torque (SOT) induced magnetization switching in the Pt/CoFe structure via inserting NiO or MgO interlayers. The effective spin Hall angles are enhanced by inserting a NiO layer and decreased by a MgO interlayer, through the harmonic Hall measurement. Both the MgO and NiO interlayers decrease the critical switching current and the minimum in-plane field required for completely switching, which is decreased down to about 50Oe for a sample with MgO and 25Oe for a sample with NiO. This originates from the reduction of the Dzyaloshinskii-Moriya interaction by inserting the oxide interlayers, which is confirmed by the Kerr images for the switching process. We confirm that the oxide interlayer is an efficient way to modify the SOT-induced magnetization switching and reveal the possibility of the SOT-induced switching for double MgO-based perpendicular magnetic tunneling junctions.
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[51771198] ; National Nature Science Foundation of China[51801212] ; Chinese Academy of Sciences[KJZD-EW-M05-3]
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000482438000025
资助机构	State Key Project of Research and Development of China ; National Nature Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/135141]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Wei
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Shangkun,Zhao, Xiaotian,Liu, Wei,et al. Modulation of spin-orbit torque induced magnetization switching in Pt/CoFe through oxide interlayers[J]. APPLIED PHYSICS LETTERS,2019,114(21):5.
APA	Li, Shangkun,Zhao, Xiaotian,Liu, Wei,Zhao, Xinguo,&Zhang, Zhidong.(2019).Modulation of spin-orbit torque induced magnetization switching in Pt/CoFe through oxide interlayers.APPLIED PHYSICS LETTERS,114(21),5.
MLA	Li, Shangkun,et al."Modulation of spin-orbit torque induced magnetization switching in Pt/CoFe through oxide interlayers".APPLIED PHYSICS LETTERS 114.21(2019):5.