Gapped broken symmetry states in ABC-stacked trilayer graphene

Jeil Jung, Allan H. Macdonald

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

We use a self-consistent Hartree-Fock approximation with realistic Coulomb interactions for π-band electrons to explore the possibility of broken symmetry states in weakly disordered ABC-stacked trilayer graphene. The competition between gapped and gapless broken symmetry states and normal states is studied by comparing total energies. We find that gapped states are favored and that, unlike the bilayer case, gapless nematic broken symmetry states are not metastable. Among the gapped states, the layer antiferromagnetic state is favored over anomalous and spin Hall states.

Original languageEnglish
Article number075408
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume88
Issue number7
DOIs
StatePublished - 8 Aug 2013

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