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Corpus ID: 229221269

Bloch-Lorentz magnetoresistance oscillations in delafossites

@article{Vilkelis2020BlochLorentzMO,
title={Bloch-Lorentz magnetoresistance oscillations in delafossites},
author={Kostas Vilkelis and Lin Wang and A. Akhmerov},
journal={arXiv: Mesoscale and Nanoscale Physics},
year={2020}
}

Recent measurements of the out-of-plane magnetoresistance of delafossites (PdCoO$_2$ and PtCoO$_2$) observed oscillations which closely resemble the Aharanov-Bohm effect. We develop a semiclassical theory of these oscillations and show that they are a consequence of the quasi-2D dispersion of delafossites. We observe that the Lorentz force created by an in-plane magnetic field makes the out-of-plane motion of electrons oscillatory, similarly to Bloch oscillations. Analysis of the visibility of… Expand

When a three-dimensional material is constructed by stacking different two-dimensional layers into an ordered structure, new and unique physical properties can emerge. An example is the delafossite… Expand

The low-temperature in-plane resistivity has an activated rather than the usual T(5) temperature dependence, suggesting a gapping of effective scattering that is consistent with phonon drag.Expand

The delafossite metals PdCoO$_{2}$, PtCoO$_{2}$ and PdCrO$_{2}$ are among the highest conductivity materials known, with low temperature mean free paths of tens of microns in the best as-grown single… Expand

Abstract A simple two-dimensional model is used to show how open orbits may produce an oscillatory size effect in the transverse magnetoresistance of parallel-sided samples of very pure metals. Under… Expand

Magnetic size effects have increasingly become the subject of experimental and theoretical investigations1–8 because they provide a means of studying the Fermi surface, supplementing the information… Expand