Persistent ferromagnetic ground state in pristine and Ni-doped Fe 3 GaTe 2 flakes

Room-temperature magnetism and its stability upon miniaturization are essential characteristics required for materials for spintronic devices and information storage. Among various candidates, Fe GaTe stands out due to its high Curie temperature and strong perpendicular magnetic anisotropy (PMA), re...

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Published in:Nano convergence 2024-12, Vol.11 (1), p.55
Main Authors: Son, Ki-Hoon, Oh, Sehoon, Lee, Junho, Yun, Sobin, Shin, Yunseo, Yan, Shaohua, Jang, Chaun, Lee, Hong-Sub, Lei, Hechang, Park, Se Young, Ryu, Hyejin
Format: Article
Language:English
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Summary:Room-temperature magnetism and its stability upon miniaturization are essential characteristics required for materials for spintronic devices and information storage. Among various candidates, Fe GaTe stands out due to its high Curie temperature and strong perpendicular magnetic anisotropy (PMA), recently gaining large attention as one of the promising candidate materials for spintronics applications. In this study, we measured the thickness-dependent ferromagnetic properties of Fe GaTe and (Fe Ni ) GaTe (with x = 0.1) flakes. We observed that both pristine and Ni-doped Fe GaTe exhibit persistent ferromagnetism, with only a minor decrease in T as the thickness is reduced to a few tens of nanometers. This capacity to retain robust ferromagnetic properties at reduced dimensions is highly advantageous for thin-film applications, which is crucial for the scaling of spintronic devices. Understanding and controlling thickness-dependent magnetic properties is fundamental to harnessing the full potential of Fe GaTe in van der Waals magnetic heterostructures and advanced spintronic technologies.
ISSN:2196-5404