Particle-hole symmetry and the reentrant integer quantum Hall Wigner solid

Abstract

Two-dimensional electron gases host topological states such as fractional quantum Hall states, which often compete with correlated insulators formed due to Coulomb interactions, such as the Wigner solid. Here the authors report a re-entrant Wigner solid which forms and melts due to fractional correlations, highlighting the role of particle-hole symmetry for phase competition in the quantum Hall regime.