Bloch-Lorentz magnetoresistance oscillations in delafossites

Kostas Vilkelis*, Lin Wang, Anton Akhmerov

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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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 languageEnglish
Article number019
Number of pages12
JournalSciPost Physics
Issue number1
Publication statusPublished - 2023


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