Gapped bilayer graphene: A tunable strongly correlated band insulator

V. V. Cheianov, I. L. Aleiner, V. I. Fal'ko

    Research output: Contribution to journalArticlepeer-review


    We introduce the notion of the strongly correlated band insulator (SCI), where the lowest energy excitations are collective modes (excitons) rather than the single particles. We construct controllable 1/N expansion for SCI to describe their observable properties. A remarkable example of the SCI is bilayer graphene which is shown to be tunable between the SCI and usual weak coupling regime.

    Original languageEnglish
    Article number106801
    JournalPhysical Review Letters
    Issue number10
    Publication statusPublished - 7 Sept 2012

    Research Beacons, Institutes and Platforms

    • National Graphene Institute


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