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arXiv · 2302.10974

Electron transport and scattering mechanisms in ferromagnetic monolayer Fe$_3$GeTe$_2$

Danis I. Badrtdinov·Georgy V. Pushkarev·Mikhail I. Katsnelson·Alexander N. Rudenko
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Abstract

We study intrinsic charge-carrier scattering mechanisms and determine their contribution to the transport properties of the two-dimensional ferromagnet Fe$_3$GeTe$_2$. We use state-of-the-art first-principles calculations combined with the model approaches to elucidate the role of the electron-phonon and electron-magnon interactions in the electronic transport. Our findings show that the charge carrier scattering in Fe$_3$GeTe$_2$ is dominated by the electron-phonon interaction, while the role of magnetic excitations is marginal. At the same time, the magnetic ordering is shown to effect essentially on the electron-phonon coupling and its temperature dependence. This leads to a sublinear temperature dependence of the electrical resistivity near the Curie temperature, which is in line with experimental observations. The room temperature resistivity is estimated to be $\sim$35 $\mu \Omega \cdot$cm which may be considered as an intrinsic limit for monolayer Fe$_3$GeTe$_2$.

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Danis I. Badrtdinov, Georgy V. Pushkarev, Mikhail I. Katsnelson, Alexander N. Rudenko. 2023-02-21. Electron transport and scattering mechanisms in ferromagnetic monolayer Fe$_3$GeTe$_2$. https://doi.org/10.1038/s41699-023-00413-0

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