Effective-band models predict anomalous Landau levels that induce Fermi-surface-like quantum oscillations in rotation-invariant 2D insulators without zero-field Fermi surfaces.
For parabolic bands the parametersβ >0 has the dimension of mass-inverse
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Anomalous Landau levels and quantum oscillation in rotation-invariant insulators
Effective-band models predict anomalous Landau levels that induce Fermi-surface-like quantum oscillations in rotation-invariant 2D insulators without zero-field Fermi surfaces.