Screening and gap generation in bilayer graphene

T. Stroucken, J. H. Grönqvist, S. W. Koch

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


A fully self-consistent treatment for gap generation and Coulomb screening in excitonic insulators is presented. The method is based on the equations of motion for the relevant dynamical variables combined with a variational approach. Applying the theory for a model system of bilayer graphene, an excitonic ground state with a gap exceeding 10 meV is predicted.

Original languageEnglish (US)
Article number245428
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number24
StatePublished - Jun 24 2013
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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