In-Plane Magnetic Domains and Neel-like Domain Walls in Thin Flakes of the Room Temperature CrTe2 Van der Waals Ferromagnet

doi:10.1021/acsami.0c07017

IMR OpenIR

	In-Plane Magnetic Domains and Neel-like Domain Walls in Thin Flakes of the Room Temperature CrTe2 Van der Waals Ferromagnet
	Purbawati, Anike 1; Coraux, Johann 1; Vogel, Jan 1; Hadj-Azzem, Abdellali 1; Wu, NianJheng 1; Bendiab, Nedjma 1; Jegouso, David 1; Renard, Julien 1; Marty, Laetitia 1; Bouchiat, Vincent 1; Sulpice, Andre 1; Aballe, Lucia 2; Foerster, Michael 2; Genuzio, Francesca 3; Locatelli, Andrea 3; Mentes, Tevfik Onur 3; Han, Zheng Vitto 4,5,6; Sun, Xingdan 4,5; Nunez-Regueiro, Manuel 1; Rougemaille, Nicolas 1
通讯作者	Coraux, Johann(johann.coraux@neel.cnrs.fr)
	2020-07-08
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	12 期号:27 页码:30702-30710
摘要	The recent discovery of magnetic van der Waals (\M) materials triggered a wealth of investigations in materials science and now offers genuinely new prospects for both fundamental and applied research. Although the catalog of vdW ferromagnets is rapidly expanding, most of them have a Curie temperature below 300 K, a notable disadvantage for potential applications. Combining element-selective X-ray magnetic imaging and magnetic force microscopy, we resolve at room temperature the magnetic domains and domain walls in micron-sized flakes of the CrTe2 vdW ferromagnet. Flux-closure magnetic patterns suggesting an in-plane six-fold symmetry are observed. Upon annealing the material above its Curie point (315 K), the magnetic domains disappear. By cooling back the sample, a different magnetic domain distribution is obtained, indicating material stability and lack of magnetic memory upon thermal cycling. The domain walls presumably have Neel texture, are preferentially oriented along directions separated by 120 degrees, and have a width of several tens of nanometers. Besides microscopic mapping of magnetic domains and domain walls, the coercivity of the material is found to be of a few millitesla only, showing that the CrTe2 compound is magnetically soft. The coercivity is found to increase as the volume of the material decreases.
关键词	Van der Waals ferromagnets two-dimensional materials layered compounds room-temperature ferromagnetism transition metal dichalcogenides magnetic imaging
资助者	Flag-ERA JTC 2017 project MORE-MXenes
DOI	10.1021/acsami.0c07017
收录类别	SCI
语种	英语
资助项目	Flag-ERA JTC 2017 project MORE-MXenes
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000550633400070
出版者	AMER CHEMICAL SOC
引用统计	被引频次：82[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/139866
专题	中国科学院金属研究所
通讯作者	Coraux, Johann
作者单位	1.Univ Grenoble Alpes, CNRS, Grenoble INP, Inst NEEL, F-38000 Grenoble, France 2.ALBA Synchrotron Light Facil, Cerdanyola Del Valles 08290, Spain 3.Elettra Sincrotrone Trieste SCpA, I-34149 Trieste, Italy 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 6.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
推荐引用方式 GB/T 7714	Purbawati, Anike,Coraux, Johann,Vogel, Jan,et al. In-Plane Magnetic Domains and Neel-like Domain Walls in Thin Flakes of the Room Temperature CrTe2 Van der Waals Ferromagnet[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(27):30702-30710.
APA	Purbawati, Anike.,Coraux, Johann.,Vogel, Jan.,Hadj-Azzem, Abdellali.,Wu, NianJheng.,...&Rougemaille, Nicolas.(2020).In-Plane Magnetic Domains and Neel-like Domain Walls in Thin Flakes of the Room Temperature CrTe2 Van der Waals Ferromagnet.ACS APPLIED MATERIALS & INTERFACES,12(27),30702-30710.
MLA	Purbawati, Anike,et al."In-Plane Magnetic Domains and Neel-like Domain Walls in Thin Flakes of the Room Temperature CrTe2 Van der Waals Ferromagnet".ACS APPLIED MATERIALS & INTERFACES 12.27(2020):30702-30710.