Enhanced Ferromagnetism and Tunable Magnetic Anisotropy in a van der Waals Ferromagnet

Autor: Xin Gao, Kun Zhai, Huixia Fu, Junxin Yan, Dongdong Yue, Feng Ke, Ying Zhao, Congpu Mu, Anmin Nie, Jianyong Xiang, Fusheng Wen, Bochong Wang, Tianyu Xue, Lin Wang, Hongtao Yuan, Zhongyuan Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Advanced Science, Vol 11, Iss 33, Pp n/a-n/a (2024)
Druh dokumentu: article
ISSN: 2198-3844
DOI: 10.1002/advs.202402819
Popis: Abstract 2D van der Waals (vdW) magnets have recently emerged as a promising material system for spintronic device innovations due to their intriguing phenomena in the reduced dimension and simple integration of magnetic heterostructures without the restriction of lattice matching. However, it is still challenging to realize Curie temperature far above room temperature and controllable magnetic anisotropy for spintronics application in 2D vdW magnetic materials. In this work, the pressure‐tuned dome‐like ferromagnetic‐paramagnetic phase diagram in an iron‐based 2D layered ferromagnet Fe3GaTe2 is reported. Continuously tunable magnetic anisotropy from out‐of‐plane to in‐plane direction is achieved via the application of pressure. Such behavior is attributed to the competition between intralayer and interlayer exchange interactions and enhanced DOS near the Fermi level. The study presents the prominent properties of pressure‐engineered 2D ferromagnetic materials, which can be used in the next‐generation spintronic devices.
Databáze: Directory of Open Access Journals
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