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arXiv · 2010.09653

Quantum oscillations in the activated conductivity in excitonic insulators: possible application to monolayer WTe2

Patrick A. Lee
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Abstract

A recent paper on the insulating state of monolayer WTe2 reported the observation of large oscillations in the conductivity that are periodic in 1/B, resembling quantum oscillations in metals. This remarkable observation has inspired suggestions of exotic physics such as spin-charge separation. We show that a rather more conventional but still nontrivial explanation in terms of gap modulation may be possible in a model of excitonic insulator subject to a magnetic field.

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Patrick A. Lee. 2020-10-19. Quantum oscillations in the activated conductivity in excitonic insulators: possible application to monolayer WTe2. https://doi.org/10.1103/physrevb.103.l041101

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