Screening and gap generation in bilayer graphene

T. Stroucken, Johanna Grönqvist, S.W. Koch

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)


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
JournalPhysical review B: Condensed matter and materials physics
Issue number24
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed


  • graphene
  • 2D materials
  • many-body theory


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