| 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 Author | Coraux, Johann(johann.coraux@neel.cnrs.fr) |
| 2020-07-08 | |
| Source Publication | ACS APPLIED MATERIALS & INTERFACES
 |
| ISSN | 1944-8244 |
| Volume | 12Issue:27Pages:30702-30710 |
| Abstract | 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. |
| Keyword | Van der Waals ferromagnets two-dimensional materials layered compounds room-temperature ferromagnetism transition metal dichalcogenides magnetic imaging |
| Funding Organization | Flag-ERA JTC 2017 project MORE-MXenes |
| DOI | 10.1021/acsami.0c07017 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Flag-ERA JTC 2017 project MORE-MXenes |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000550633400070 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139866 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Coraux, Johann |
| Affiliation | 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 |
| Recommended Citation 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. |
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