Enhancement of spin-orbit torque in WS2/Co/Pt trilayers via spin-orbit proximity effect

doi:10.1103/PhysRevB.107.L100403

兰州大学机构库

	Enhancement of spin-orbit torque in WS2/Co/Pt trilayers via spin-orbit proximity effect
	Li, Yuzhi; Song, Yakai; Zhang, Jianrong; Yang, Qiu; Xi, Li; Zuo, Yalu; Zhang, Junli; Si, Mingsu; Xue, Desheng; Yang, Dezheng
	2023-03-07
Source Publication	PHYSICAL REVIEW B Impact Factor & Quartile
ISSN	2469-9950
Volume	107 Issue:10
Abstract	Enhancement of spin-orbit torque (SOT) efficiency in ferromagnet/heavy-metal bilayer is promising for the realization of low-power spintronic devices. Here we show that inserting a single-layer WS2 between the substrate and Co/Pt layers, can reduce Co coercivity by similar to 28% and increase dampinglike SOT efficiency by similar to 30%, up to 35.07 Oe/(107A/cm2). When inserting WS2 with different layers, we further demonstrate that these phenomena only exist for odd WS2 layers, i.e., monolayer and trilayer, while they disappear for even WS2 layers, i.e., bilayer. Theoretical analysis based on the first-principles calculations suggests that the results originate from the thickness-controlled charge transfer between WS2 and Co, which is consistent with the spin-orbit proximity effect.
Publisher	AMER PHYSICAL SOC
DOI	10.1103/PhysRevB.107.L100403
Indexed By	SCIE
Language	英语
WOS Research Area	Materials Science ; Physics
WOS Subject	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS ID	WOS:000962231400001
Original Document Type	Article
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	https://ir.lzu.edu.cn/handle/262010/501386
Collection	兰州大学
Corresponding Author	Xue, Desheng
Affiliation	Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
Recommended Citation GB/T 7714	Li, Yuzhi,Song, Yakai,Zhang, Jianrong,et al. Enhancement of spin-orbit torque in WS2/Co/Pt trilayers via spin-orbit proximity effect[J]. PHYSICAL REVIEW B,2023,107(10).
APA	Li, Yuzhi.,Song, Yakai.,Zhang, Jianrong.,Yang, Qiu.,Xi, Li.,...&Yang, Dezheng.(2023).Enhancement of spin-orbit torque in WS2/Co/Pt trilayers via spin-orbit proximity effect.PHYSICAL REVIEW B,107(10).
MLA	Li, Yuzhi,et al."Enhancement of spin-orbit torque in WS2/Co/Pt trilayers via spin-orbit proximity effect".PHYSICAL REVIEW B 107.10(2023).

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