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Semi-classical theory of magnetic quantum oscillations in a two-dimensional multiband canonical Fermi liquid

A. S. Alexandrov·A. M. Bratkovsky
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Abstract

The semi-classical Lifshitz-Kosevich (LK) description of quantum oscillations is extended to a multiband two-dimensional Fermi liquid with a constant number of electrons. The amplitudes of novel oscillations with combination frequencies, recently predicted and observed experimentally, are analytically derived and compared with the single-band amplitudes. The combination amplitudes decay with temperature exponentially faster than the standard harmonics, and this provides a valuable tool for their experimental identification.

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A. S. Alexandrov, A. M. Bratkovsky. 2000-08-25. Semi-classical theory of magnetic quantum oscillations in a two-dimensional multiband canonical Fermi liquid. https://doi.org/10.1103/physrevb.63.033105

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