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Spontaneous symmetry breaking and Lifshitz transition in bilayer graphene

Research output: Contribution to journalJournal article

Published

Article number201408
Journal publication date17/11/2010
JournalPhysical review b
Journal number20
Volume82
Number of pages4
Pages-
Original languageEnglish

Abstract

We derive the renormalization-group equations describing all the short-range interactions in bilayer graphene allowed by symmetry, the long-range Coulomb interaction, and band-structure parameters. For certain range of parameters, we predict the first-order phase transition to the uniaxially deformed gapless state accompanied by the change in the topology of the electron spectrum.