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.
Original language | English |
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Article number | 019 |
Number of pages | 12 |
Journal | SciPost Physics |
Volume | 15 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2023 |