- Letter
Nature of the anomalous fractional quantum Hall effect in graphene
Phys. Rev. B 105, L241403 – Published 7 June, 2022
DOI: https://doi.org/10.1103/PhysRevB.105.L241403
Abstract
Extensive fractional quantum Hall effect (FQHE) has been observed in graphene-based materials. Some of the observed fractions are anomalous in that FQHE has not been established at these fractions in conventional GaAs systems. One such fraction is , where incompressibility has recently been reported in graphene [Kumar et al., Nat. Commun. 9, 2776 (2018)]. We propose a partonic wave function at and show it to be a viable candidate to describe the Coulomb ground state. Using the effective edge theory, we make predictions for experimentally measurable properties of the state.
