Screening and gap generation in bilayer graphene

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

doi:10.1103/PhysRevB.87.245428

Screening and gap generation in bilayer graphene

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

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

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 language	English (US)
Article number	245428
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.87.245428
State	Published - Jun 24 2013

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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