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  • Title: Absence of skew scattering in two-dimensional systems: testing the origins of the anomalous Hall effect.
    Author: Borunda M, Nunner TS, Lück T, Sinitsyn NA, Timm C, Wunderlich J, Jungwirth T, MacDonald AH, Sinova J.
    Journal: Phys Rev Lett; 2007 Aug 10; 99(6):066604. PubMed ID: 17930849.
    Abstract:
    We study the anomalous Hall conductivity in spin-polarized, asymmetrically confined two-dimensional electron and hole systems, taking into account the intrinsic, side-jump, and skew-scattering contributions to the transport. We find that the skew scattering, principally responsible for the extrinsic contribution to the anomalous Hall effect, vanishes for the two-dimensional electron system if both chiral Rashba subbands are partially occupied, and vanishes always for the two-dimensional hole gas studied here, regardless of the band filling. Our prediction can be tested with the proposed coplanar two-dimensional electron-hole gas device and can be used as a benchmark to understand the crossover from the intrinsic to the extrinsic anomalous Hall effect.
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