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Journal Article

Continuous manipulation of magnetic anisotropy in a van der Waals ferromagnet via electrical gating

MPS-Authors
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Tang,  P.
School of Materials Science and Engineering, Beihang University;
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science;

External Resource

https://arxiv.org/abs/2211.08909
(Preprint)

https://doi.org/10.1038/s41928-022-00882-z
(Publisher version)

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Fulltext (public)

2211.08909.pdf
(Preprint), 2MB

Supplementary Material (public)

suppl.zip
(Supplementary material), 15MB

source.zip
(Supplementary material), 2MB

Citation

Tang, M., Huang, J., Qin, F., Zhai, K., Ideue, T., Li, Z., et al. (2023). Continuous manipulation of magnetic anisotropy in a van der Waals ferromagnet via electrical gating. Nature Electronics, 6(1), 28-36. doi:10.1038/s41928-022-00882-z.


Cite as: https://hdl.handle.net/21.11116/0000-000B-F375-F
Abstract
Controlling the magnetic anisotropy of ferromagnetic materials plays a key role in magnetic switching devices and spintronic applications. Examples of spin-orbit torque devices with different magnetic anisotropy geometries (in-plane or out-of-plane directions) have been demonstrated with novel magnetization switching mechanisms for extended device functionalities. Normally, the intrinsic magnetic anisotropy in ferromagnetic materials is unchanged within a fixed direction, and thus, it is difficult to realize multifunctionality devices. Therefore, continuous modulation of magnetic anisotropy in ferromagnetic materials is highly desired but remains challenging. Here, we demonstrate a gate-tunable magnetic anisotropy transition from out-of-plane to canted and finally to in-plane in layered Fe5GeTe2 by combining the measurements of the angle-dependent anomalous Hall effect and magneto-optical Kerr effect with quantitative Stoner-Wohlfarth analysis. The magnetic easy axis continuously rotates in a spin-flop pathway by gating or temperature modulation. Such observations offer a new avenue for exploring magnetization switching mechanisms and realizing new spintronic functionalities.