Layer-Dependent Magnetic Domains in Atomically Thin Fe5GeTe2

doi:10.1021/acsnano.2c01948

	Layer-Dependent Magnetic Domains in Atomically Thin Fe5GeTe2
	Fujita, Ryuji 1; Bassirian, Pedram 1,2; Li, Zhengxian3 ; Guo, Yanfeng3 ; Mawass, Mohamad A.4; Kronast, Florian 4; van der Laan, Gerrit 5; Hesjedal, Thorsten 1
	2022-07-26
发表期刊	ACS NANO (IF:15.8[JCR-2023],16.2[5-Year])
ISSN	1936-0851
EISSN	1936-086X
卷号	16 期号:7 页码:10545–10553
发表状态	已发表
DOI	10.1021/acsnano.2c01948
摘要	["Magnetic domain formation in two-dimensional (2D) materials gives perspectives into the fundamental origins of 2D magnetism and also motivates the development of advanced spintronics devices. However, the characterization of magnetic domains in atomically thin van der Waals (vdW) flakes remains challenging. Here, we employ X-ray photoemission electron microscopy (XPEEM) to perform layer-resolved imaging of the domain structures in the itinerant vdW ferromagnet Fe5GeTe2 which shows near room temperature bulk ferromagnetism and a weak perpendicular magnetic anisotropy (PMA). In the bulk limit, we observe the well-known labyrinth-type domains. Thinner flakes, on the other hand, are characterized by increasingly fragmented domains. While PMA is a characteristic property of Fe5GeTe2, we observe a spin-reorientation transition with the spins canting in-plane for flakes thinner than six layers. Notably, a bubble phase emerges in four-layer flakes. This thickness dependence, which clearly deviates from the single-domain behavior observed in other 2D magnetic materials, demonstrates the exciting prospect of stabilizing complex spin textures in 2D vdW magnets at relatively high temperatures.","Superscript/Subscript Available
关键词	two-dimensional material Fe < sub > 5 < sub > GeTe < sub > 2 < sub > Fe < sub > 3 < sub > GeTe < sub > 2 < sub > magnetic materials van der Waals materials
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收录类别	SCI ; EI ; SCIE
语种	英语
资助项目	Oxford-ShanghaiTech collaboration project[EP/N032128/1] ; UK Skyrmion Project (Engineering and Physical Sciences Research Council)["92065201","11874264"] ; National Science Foundation of China["21JC1402000","212-10475-ST","730872"]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000831220600001
出版者	AMER CHEMICAL SOC
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/209280
专题	物质科学与技术学院_博士生物质科学与技术学院_PI研究组_郭艳峰组
通讯作者	Hesjedal, Thorsten
作者单位	1.Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England 2.Max Planck Inst Microstruct Phys, D-06120 Halle, Germany 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 4.Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany 5.Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England
推荐引用方式 GB/T 7714	Fujita, Ryuji,Bassirian, Pedram,Li, Zhengxian,et al. Layer-Dependent Magnetic Domains in Atomically Thin Fe5GeTe2[J]. ACS NANO,2022,16(7):10545–10553.
APA	Fujita, Ryuji.,Bassirian, Pedram.,Li, Zhengxian.,Guo, Yanfeng.,Mawass, Mohamad A..,...&Hesjedal, Thorsten.(2022).Layer-Dependent Magnetic Domains in Atomically Thin Fe5GeTe2.ACS NANO,16(7),10545–10553.
MLA	Fujita, Ryuji,et al."Layer-Dependent Magnetic Domains in Atomically Thin Fe5GeTe2".ACS NANO 16.7(2022):10545–10553.