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arXiv · 2305.09743

Spin scattering and Hall effects in monolayer Fe3GeTe2

Luyan Yu·Jie-Xiang Yu·Jiadong Zang·Roger K. Lake·Houlong Zhuang·Gen Yin
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Abstract

We theoretically show that the carrier transport in monolayer Fe3GeTe2 experiences a transition between anomalous Hall effect and spin Hall effect when the spin polarization of disorders switches between out-of-plane and in-plane. These Hall effects are allowed when the magnetization is polarized in-plane, breaking the C3 rotation symmetry. The transition originates from the selection rule of spin scattering, the strong spin-orbit coupling, and the van Hove singularities near the Fermi surface. The scattering selection rule tolerates the sign change of the disorder spin, which provides a convenient method to detect the switching of antiferromagnetic insulators regardless of the interfacial roughness in a heterostructure. This provides a convenient platform for the study of 2D spintronics through various van-der-Waals heterostructures.

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Luyan Yu, Jie-Xiang Yu, Jiadong Zang, Roger K. Lake, Houlong Zhuang, Gen Yin. 2023-05-16. Spin scattering and Hall effects in monolayer Fe3GeTe2. https://doi.org/10.1103/physrevb.108.134425

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