Temperature-dependent charge transport in the compensated ferrimagnet Mn$_{1.5}$V$_{0.5}$FeAl from first principles
We present an ab-initio study of the temperature-dependent longitudinal and anomalous Hall resistivities in the compensated collinear ferrimagnet Mn$_{1.5}$V$_{0.5}$FeAl. Its transport properties are calculated using the general fully relativistic Kubo--Bastin formalism and their temperature depende...
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Zusammenfassung: | We present an ab-initio study of the temperature-dependent longitudinal and
anomalous Hall resistivities in the compensated collinear ferrimagnet
Mn$_{1.5}$V$_{0.5}$FeAl. Its transport properties are calculated using the
general fully relativistic Kubo--Bastin formalism and their temperature
dependency is accounted for magnetic and structural disorder. Both scattering
sources, together with the residual chemical disorder, were treated equally
provided by the CPA (Coherent Potential Approximation) SPR-KKR (Spin-Polarized
Relativistic Korringa-Kohn-Rostoker) method. All calculated properties showed
good agreement with a recent experimental results, providing useful specific
information on the chemical and magnetic arrangement as well as on the
influence of disorder. Finally, we demonstrated that the anomalous Hall effect
in such compensated systems occurs regardless of the vanishing net spin moment. |
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DOI: | 10.48550/arxiv.1710.04453 |