Bloch-Lorentz magnetoresistance oscillations in delafossites

Journal Article (2023)
Author(s)

K. Vilkelis (Kavli institute of nanoscience Delft, TU Delft - QRD/Wimmer Group, TU Delft - QuTech Advanced Research Centre)

Lin Wang (TU Delft - QN/Akhmerov Group, Kavli institute of nanoscience Delft)

A.R. Akhmerov (Kavli institute of nanoscience Delft, TU Delft - QN/Akhmerov Group)

Research Group
QRD/Wimmer Group
Copyright
© 2023 K. Vilkelis, L. Wang, A.R. Akhmerov
DOI related publication
https://doi.org/10.21468/SciPostPhys.15.1.019
More Info
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Publication Year
2023
Language
English
Copyright
© 2023 K. Vilkelis, L. Wang, A.R. Akhmerov
Research Group
QRD/Wimmer Group
Issue number
1
Volume number
15
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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.