Combination quantum oscillations in canonical single-band Fermi liquids

TL;DR

This paper predicts the occurrence of combination quantum oscillations in canonical single-band Fermi liquids with multiple extremal cross-sections, expanding understanding of magneto-oscillation phenomena beyond multi-band systems.

Contribution

It introduces the concept of combination quantum oscillations in single-band Fermi liquids with multiple extremal cross-sections, using a single-band energy spectrum model.

Findings

Prediction of combination harmonics in single-band Fermi liquids.

Analysis of experimental conditions for observing these harmonics.

Extension of multi-band oscillation concepts to single-band systems.

Abstract

Chemical potential oscillations mix individual-band frequencies of the de Haas-van Alphen (dHvA) and Shubnikov-de Haas (SdH) magneto-oscillations in canonical low-dimensional multi-band Fermi liquids. We predict a similar mixing in canonical single-band Fermi liquids, which Fermi-surfaces have two or more extremal cross-sections. Combination harmonics are analysed using a single-band almost two-dimensional energy spectrum. We outline some experimental conditions allowing for resolution of combination harmonics.