Direct correlation between spin states and magnetic torques in a room-temperature van der Waals antiferromagnetopen access
- Authors
- Shin Hyun Jun; Kim Jin Seok; Kim Jong Hyuk; Seo Jae Yeon; Hong Jae Min; Jeong Ki Won; Moon Kyungsun; Kim Mi Kyung; Lee Nara; Choi Young Jai
- Issue Date
- Mar-2023
- Publisher
- Nature Publishing Group
- Citation
- NPG Asia Materials, v.15, no.1
- Journal Title
- NPG Asia Materials
- Volume
- 15
- Number
- 1
- URI
- https://yscholarhub.yonsei.ac.kr/handle/2021.sw.yonsei/6469
- ISSN
- 1884-4049
1884-4057
- Abstract
- Explorations of van der Waals (vdW) antiferromagnets have revealed new avenues for understanding the fundamentals of highly anisotropic magnetism and realizing spin-based functional properties. However, there is a serious limitation to the feasibility of spintronic applications at room temperature owing to the lack of suitable materials. In this work, we examined the anisotropic magnetic characteristics of Co-doped Fe5GeTe2, a high-T-N antiferromagnet with T-N = 350 K in which magnetic multilayers are intrinsically formed. Our spin-model calculations with uniaxial anisotropy quantify the magnetocrystalline anisotropy energy and visualize the specific spin arrangements varying in the presence of rotating magnetic fields at room temperature. We further show that the spin configurations can be profoundly relevant to the distinctive evolution of magnetic torques in different magnetic phases. Our advanced approach offers a high-T-N vdW antiferromagnet as a magnetic platform to establish room-temperature spin-processing functionalities.
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Collections - College of Science > Physics > 1. Journal Articles
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