Screening and gap generation in bilayer graphene
- 24 June 2013
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 87 (24) , 245428
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.Keywords
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