In-Plane Magnetic Domains and Neel-like Domain Walls in Thin Flakes of the Room Temperature CrTe2 Van der Waals Ferromagnet
Purbawati, Anike1; Coraux, Johann1; Vogel, Jan1; Hadj-Azzem, Abdellali1; Wu, NianJheng1; Bendiab, Nedjma1; Jegouso, David1; Renard, Julien1; Marty, Laetitia1; Bouchiat, Vincent1; Sulpice, Andre1; Aballe, Lucia2; Foerster, Michael2; Genuzio, Francesca3; Locatelli, Andrea3; Mentes, Tevfik Onur3; Han, Zheng Vitto4,5,6; Sun, Xingdan4,5; Nunez-Regueiro, Manuel1; Rougemaille, Nicolas1
Corresponding AuthorCoraux, Johann(
AbstractThe 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.
KeywordVan der Waals ferromagnets two-dimensional materials layered compounds room-temperature ferromagnetism transition metal dichalcogenides magnetic imaging
Funding OrganizationFlag-ERA JTC 2017 project MORE-MXenes
Indexed BySCI
Funding ProjectFlag-ERA JTC 2017 project MORE-MXenes
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000550633400070
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Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorCoraux, Johann
Affiliation1.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
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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.
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