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Anomalous Hall conductivity and quantum friction

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    0570234 - FZÚ 2024 RIV US eng J - Journal Article
    Středa, Pavel - Výborný, Karel
    Anomalous Hall conductivity and quantum friction.
    Physical Review B. Roč. 107, č. 1 (2023), č. článku 014425. ISSN 2469-9950. E-ISSN 2469-9969
    R&D Projects: GA ČR(CZ) GA22-21974S
    Institutional support: RVO:68378271
    Keywords : anomalous Hall effect
    OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
    Impact factor: 3.7, year: 2022
    Method of publishing: Limited access
    https://doi.org/10.1103/PhysRevB.107.014425

    Anomalous Hall effect in high conductivity region is studied using a two-dimensional network model. We find that the off-diagonal conductivity comprises two parts: one which reflects the bulk properties as obtained by the Kubo formula and another which is sensitive to boundary conditions imposed on the network. In fully coherent limit the latter scales with the width of the conducting channel, while for real-world samples it is controlled by the coherence length. It provides an alternative interpretation of the observed behavior in the clean limit which is otherwise attributed to the skew scattering. We highlight analogies to friction in viscous fluids responsible for Couette flow. In the present case, this quantum effect is governed by wave interference.
    Permanent Link: https://hdl.handle.net/11104/0342064

     
     
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