Bloch-Lorentz magnetoresistance oscillations in delafossites

Journal article (2023)

Authors

K. Vilkelis QRD/Wimmer Group - QuTech Advanced Research Centre , QuTech Advanced Research Centre, Kavli institute of nanoscience Delft
L. Wang QN/Akhmerov Group - AS , Kavli institute of nanoscience Delft
A.R. Akhmerov Kavli institute of nanoscience Delft, QN/Akhmerov Group - AS
Research Group
QRD/Wimmer Group (QuTech Advanced Research Centre) (TU Delft)
Copyright: © 2023 K. Vilkelis, L. Wang, A.R. Akhmerov
DOI
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https://doi.org/10.21468/SciPostPhys.15.1.019
More Info
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Published Date

2023

Language

English

Faculty

QuTech Advanced Research Centre

Department

Qubit Research Division

Research Group

QRD/Wimmer Group

Abstract

Recent measurements of the out-of-plane magnetoresistance of delafossites (PdCoO2 and PtCoO2) observed oscillations closely resembling the Aharonov-Bohm effect. Here, we show that the magnetoresistance oscillations are explained by the Bloch-like oscillations of the out-of-plane electron trajectories. We develop a semiclassical theory of these Bloch-Lorentz oscillations and show that they are a consequence of the ballistic motion and quasi-2D dispersion of delafossites. Our model identifies the sample wall scattering to be the most likely factor limiting the visibility of these Bloch-Lorentz oscillations in existing experiments.