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Electron transport and scattering mechanisms in ferromagnetic monolayer Fe3GeTe2.

Authors :
Badrtdinov, Danis I.
Pushkarev, Georgy V.
Katsnelson, Mikhail I.
Rudenko, Alexander N.
Source :
NPJ 2D Materials & Applications; 8/7/2023, Vol. 7 Issue 1, p1-7, 7p
Publication Year :
2023

Abstract

We study intrinsic charge-carrier scattering mechanisms and determine their contribution to the transport properties of the two-dimensional ferromagnet Fe<subscript>3</subscript>GeTe<subscript>2</subscript>. 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<subscript>3</subscript>GeTe<subscript>2</subscript> 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 ~ 35 μΩ ⋅ cm which may be considered as a lower intrinsic limit for monolayer Fe<subscript>3</subscript>GeTe<subscript>2</subscript>. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
23977132
Volume :
7
Issue :
1
Database :
Complementary Index
Journal :
NPJ 2D Materials & Applications
Publication Type :
Academic Journal
Accession number :
169809754
Full Text :
https://doi.org/10.1038/s41699-023-00413-0