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arXiv · 2606.12514

Cyclotron mass-selective de Haas-van Alphen measurements using temperature modulation

Michelle Hollricher·Andreas Bauer·Leo Maximov·Louw Feenstra·Christian Pfleiderer·Marc A. Wilde
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Abstract

We present a temperature-modulated de Haas-van Alphen measurement technique that allows selective addressing of quantum oscillations with different effective masses $m^{\ast}$ using a non-monotonic amplitude evolution with temperature and magnetic field, governed by the temperature derivative of the Lifshitz-Kosevich factor. The technique relies on harmonic modulation of the sample temperature and phase-sensitive detection of quantum oscillations in the voltage induced in a pick-up coil. We use a set of frequencies with strong Zeeman-driven harmonic content in the compensated topological semimetal MoSi$_{2}$ as a natural linear mass comb ranging from 1$m^{\ast}$ to 13$m^{\ast}$ to demonstrate the tunability of the mass-dependent quantum oscillation amplitudes experimentally. The technique allows to reliably isolate weak contributions of heavy orbits that are inaccessible in conventional de Haas-van Alphen frequency spectra because their frequency peaks overlap with much stronger frequency peaks of lighter orbits.

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Michelle Hollricher, Andreas Bauer, Leo Maximov, Louw Feenstra, Christian Pfleiderer, Marc A. Wilde. 2026-06-10. Cyclotron mass-selective de Haas-van Alphen measurements using temperature modulation. https://arxiv.org/abs/2606.12514

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