2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/163800Graphene is a two-dimensional carbon material with a honeycomb lattice and Dirac-like low-energy excitations. When Zeeman and spin-orbit interactions are neglected its Landau levels are four-fold degenerate, explaining the $4 e^2/h$ separation between quantized Hall conductivity values seen in recent experiments. In this paper we derive a criterion for the occurrence of interaction-driven quantum Hall effects near intermediate integer values of $e^2/h$ due to charge gaps in broken symmetry states.4 pages, 1 figureMesoscale and Nanoscale PhysicsStrongly Correlated Electronstext