First-principles study of the anomalous Hall effect based on exact muffin-tin orbitals

2021/01/29 by Lei Wang, Tai Min, Ke Xia · 10 citations
Mathematics · Physics and Astronomy · #Atomic orbital #Condensed matter physics #Electron #Ferromagnetism #Hall effect #Impurity #Jump #Magnetic field #Magnetic properties of thin films #Magnon #Materials science #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Scaling #Scattering #Tin #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1103/physrevb.103.054204

published in Physical review. B./Physical review. B 103(5) (American Physical Society)

arxiv created 2021/01/29 · openalex created_date 2021/02/15 · openalex publication_date 2021/02/26 · arxiv updated 2021/03/03 · openalex updated_date 2026/08/05

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.

Citations

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