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MA: Fachverband Magnetismus

MA 35: Spin Transport and Orbitronics, Spin-Hall Effects I (joint session MA/TT)

MA 35.4: Talk

Thursday, March 21, 2024, 10:15–10:30, H 2013

Investigation of the topological transport properties for the MAB phase — •Fu Li, Ruiwen Xie, and Hongbin Zhang — Institute of Materials Science, Technology University of Darmstadt, 64287, Darmstadt, Germany

Compounds of MAB phases, i.e, Ternary transition metal borides with nano-laminated structures, have attracted significant attention due to their intriguing physical properties. In this work, we evaluate the topological transport properties(anomalous and spin Hall conductivities) of MAB compounds, aiming to uncover potential applications in the field of spintronics. After constructing the maximally localized Wannier functional automatically, the anomalous and spin Hall conductivities are obtained based on the Wannier interpolation. It is observed several compounds exhibit significant anomalous and spin Hall conductivities, which can be understood based on the underlying electronic structure. Furthermore, the influence of magnetization direction on spin Hall conductivity is studied for those compounds where the inversion symmetry is broken due to the antiferromagnetic ordering. We find that the magnitude of spin Hall conductivity can be tailored by the magnetization direction, offering possible applications in spintronics.

Keywords: Spin Hall conductivity; Anomalous Hall conductivity; High throughput; MAB phase

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