Ferroelectric Control of Magnetic Skyrmions in Two-Dimensional van der Waals Heterostructures

doi:10.1021/acs.nanolett.2c00564

	Ferroelectric Control of Magnetic Skyrmions in Two-Dimensional van der Waals Heterostructures
	Huang, Kai 2,3; Shao, Ding-Fu 1; Tsymbal, Evgeny Y.2,3
刊名	NANO LETTERS
	2022-04-27
卷号	22
关键词	Spintronics Magnetic Skyrmions Ferroelectricity van der Waals Heterostructures
ISSN号	1530-6984
DOI	10.1021/acs.nanolett.2c00564
通讯作者	Shao, Ding-Fu(dfshao@issp.ac.cn) ; Tsymbal, Evgeny Y.(tsymbal@unl.edu)
英文摘要	Magnetic skyrmions are chiral nanoscale spin textures which are usuallyinduced by the Dzyaloshinskii-Moriya interaction (DMI). Recently, magnetic skyrmionshave been observed in two-dimensional (2D) van der Waals (vdW) ferromagneticmaterials, such as Fe3GeTe2. The electric control of skyrmions is important for theirpotential application in low-power memory technologies. Here, we predict that DMI andmagnetic skyrmions in a Fe3GeTe2monolayer can be controlled by ferroelectricpolarization of an adjacent 2D vdW ferroelectric In2Se3. Based on density functionaltheory and atomistic spin-dynamics modeling, wefind that the interfacial symmetrybreaking produces a sizable DMI in a Fe3GeTe2/In2Se3vdW heterostructure. We showthat the magnitude of DMI can be controlled by ferroelectric polarization reversal,leading to creation and annihilation of skyrmions. Furthermore, wefind that the sign of DMI in a In2Se3/Fe3GeTe2/In2Se3heterostructure changes with ferroelectric switching reversing the skyrmion chirality. The predicted electrically controlled skyrmionformation may be interesting for spintronic applications.
资助项目	EPSCoR RII Track-1 (NSF Award) program[OIA-2044049]
WOS关键词	LATTICE ; FERROMAGNETISM ; DISCOVERY ; DYNAMICS ; INPLANE
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000809056900023
资助机构	EPSCoR RII Track-1 (NSF Award) program
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131309]
专题	中国科学院合肥物质科学研究院
通讯作者	Shao, Ding-Fu; Tsymbal, Evgeny Y.
作者单位	1.Chinese Acad Sci, HFIPS, Key Lab Mat Phys, Inst Solid State Phys, Hefei 230031, Peoples R China 2.Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA 3.Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA
推荐引用方式 GB/T 7714	Huang, Kai,Shao, Ding-Fu,Tsymbal, Evgeny Y.. Ferroelectric Control of Magnetic Skyrmions in Two-Dimensional van der Waals Heterostructures[J]. NANO LETTERS,2022,22.
APA	Huang, Kai,Shao, Ding-Fu,&Tsymbal, Evgeny Y..(2022).Ferroelectric Control of Magnetic Skyrmions in Two-Dimensional van der Waals Heterostructures.NANO LETTERS,22.
MLA	Huang, Kai,et al."Ferroelectric Control of Magnetic Skyrmions in Two-Dimensional van der Waals Heterostructures".NANO LETTERS 22(2022).