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Chirality-Driven Anomalous Hall Effect in Weak Coupling Regime

2002/04/04 by Gen Tatara, Hikaru Kawamura · 235 citations
Physics and Astronomy · #Coupling (piping) #Hall effect #Magnetic properties of thin films #Mesoscopic physics #Quantum Hall effect #Scattering #Spin Hall effect #Theoretical and Computational Physics #Thermal Hall effect #Topological Materials and Phenomena #cond-mat.mes-hall

paper · pdf · doi:10.1143/jpsj.71.2613

published in Journal of the Physical Society of Japan 71(11), 2613-2616 (Physical Society of Japan)

arxiv created 2002/04/04 · openalex publication_date 2002/11/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Anomalous Hall effect arising from non-trivial spin configuration (chirality) is studied based on the s-d model. Considering a weak coupling case, the interaction is treated perturbatively. Scattering by normal impurities is included. Chirality is shown to drive locally Hall current and leads to overall Hall effect if there is a finite uniform chirality. This contribution is independent of the conventional spin-orbit contribution and shows distinct low temperature behavior. In mesoscopic spin glasses, chirality-induced anomalous Hall effect is expected below the spin-glass transition temperature. Measurement of Hall coefficient would be useful in experimentally confirming the chirality ordering.

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