Unified First-Principles Study of the Anomalous Hall Effect Based on Exact Muffin-Tin Orbitals

Abstract

Based on the exact muffin-tin orbitals (EMTOs), we developed a first-principles method to calculate the current operators and investigated the anomalous Hall effect in bcc Fe as an example, with which we successfully separated the skew scattering contribution from the side jump and intrinsic contributions by fitting the scaling law with the introduction of sparse impurities. By investigating the temperature dependence of the anomalous Hall effect in bulk Fe, we predicted a fluctuated anomalous Hall angle as a function of temperature when considering only phonons, which, in the future, can be measured in experiments by suppressing magnon excitation, e.g., by applying a high external magnetic field.

References in corpus (5)

• First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe
• Multivariable Scaling for the Anomalous Hall Effect
• Magnetism and anomalous transport in the Weyl semimetal PrAlGe: Possible route to axial gauge fields
• Direct Method for Calculating Temperature-Dependent Transport Properties
• Calculating spin transport properties from first principles: spin currents