Distortion of the perfect lattice structure in bilayer graphene

Details Distortion of the perfect lattice structure in bilayer graphene Distortion of the perfect lattice structure in bilayer graphene

2008-09-29

arxiv.org/abs/0809.5071v1

Phys. Rev. B 79, 045421 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.79.045421

We consider the instability of bilayer graphene with respect to a distorted configuration in the same spirit as the model introduced by Su, Schrieffer and Heeger. By computing the total energy of a distorted bilayer, we conclude that the ground state of the system favors a finite distortion. We explore how the equilibrium configuration changes with carrier density and an applied potential difference between the two layers.

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