Free-standing 2D ironene with magnetic vortex structure at room temperature

doi:10.1016/j.matt.2021.11.029

	Free-standing 2D ironene with magnetic vortex structure at room temperature
	Li, Wei 1,4; Qiu, Xueying 2; Lv, Boyao 3; Zhang, Biao 1,4; Tang, Jin 3; Xu, Junjie 1,4; Tian, Kesong 1,4; Zhao, Zijing 1,4; Zeng, Yi 1,4; Huang, Xiaoxiao 1,4
刊名	MATTER
	2022-01-05
卷号	5
ISSN号	2590-2393
DOI	10.1016/j.matt.2021.11.029
通讯作者	Hou, Yanglong(hou@pku.edu.cn)
英文摘要	Free-standing two-dimensional (2D) elemental transition metal single crystals are an important kind of nanomaterial, with abundant fascinating theoretical properties, such as magnetism. To date, however, they rarely have been grown and studied because of the difficulty in controllable synthesis, since the existence of surface dangling bonds makes the 2D growth of these crystals challenging. Herein, we discuss developing a Te-assisted chemical vapor deposition (CVD) method and growing 2D Fe single-crystal nanoflakes (termed ironene) with different thicknesses, illustrating that Te powder and space-confined setup are the two key factors. Notably, thickness and geometrical shape-dependent magnetic domain structure of the obtained 2D ironene at room temperature was explored Furthermore, this interesting domain configuration was confirmed by Lorentz transmission electron microscopy (LTEM), and magnetic domain manipulation was performed in situ. This work provides a valuable case study for synthesizing 2D elemental transition metal nanoflakes with room-temperature ferromagnetism and paves the way for developing new diverse spintronics.
资助项目	National Key R&D Program of China[2017YFA0206301] ; National Natural Science Foundation of China[52027801] ; National Natural Science Foundation of China[51631001] ; National Natural Science Foundation of China[52001007] ; National Natural Science Foundation of China[52002004] ; Natural Science Foundation of Beijing Municipality[2191001] ; China-German Collaboration Project[M-0199] ; High-Performance Computing Platform of Peking University
WOS关键词	TOTAL-ENERGY CALCULATIONS ; FIELD-EFFECT TRANSISTORS ; SILICENE ; MONOLAYER ; FERROMAGNETISM ; EFFICIENCY ; ANISOTROPY ; BOROPHENE ; GERMANENE ; FILMS
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000742104900002
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Beijing Municipality ; China-German Collaboration Project ; High-Performance Computing Platform of Peking University
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127125]
专题	中国科学院合肥物质科学研究院
通讯作者	Hou, Yanglong
作者单位	1.Beijing Innovat Ctr Engn Sci & Adv Technol BIC ES, Beijing Key Lab Magnetoelect Mat & Devices BKLMMD, Beijing 100871, Peoples R China 2.Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China 3.Univ Sci & Technol China, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Chinese Acad Sci, Hefei 230031, Peoples R China 4.Peking Univ, Sch Mat Sci & Engn, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Li, Wei,Qiu, Xueying,Lv, Boyao,et al. Free-standing 2D ironene with magnetic vortex structure at room temperature[J]. MATTER,2022,5.
APA	Li, Wei.,Qiu, Xueying.,Lv, Boyao.,Zhang, Biao.,Tang, Jin.,...&Hou, Yanglong.(2022).Free-standing 2D ironene with magnetic vortex structure at room temperature.MATTER,5.
MLA	Li, Wei,et al."Free-standing 2D ironene with magnetic vortex structure at room temperature".MATTER 5(2022).