Effective theory of rotationally faulted multilayer graphene - the local limit

Details Effective theory of rotationally faulted multilayer graphene - the local limit Effective theory of rotationally faulted multilayer graphene - the local limit

2012-04-03

arxiv.org/abs/1204.0814v1

J. Phys. D: Appl. Phys. 45, 154005 (2012)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 4 figures. arXiv admin note: text overlap with arXiv:1009.4492

Scientific paper

Interlayer coupling in rotationally faulted graphene multilayers breaks the local sublattice-symmetry of the individual layers. Earlier we have presented a theory of this mechanism, which reduces to an effective Dirac model with space-dependent mass in an important limit. It thus makes a wealth of existing knowledge available for the study of rotationally faulted graphene multilayers. Agreement of this theory with a recent experiment in a strong magnetic field was demonstrated. Here we explore some of the predictions of this theory for the system in zero magnetic field at large interlayer bias, when it becomes local in space. We use that theory to illuminate the physics of localization and velocity renormalization in twisted graphene bilayers.

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