Anomalous Hall conductivity and quantum friction

0570234 - FZÚ 2024 RIV US eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GA22-21974S
Institucionální podpora: RVO:68378271
Klíčová slova: anomalous Hall effect
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.7, rok: 2022
Způsob publikování: Omezený přístup
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.
Trvalý link: https://hdl.handle.net/11104/0342064