Charge redistribution and interlayer coupling in twisted bilayer graphene under electric fields

作者: E. Suárez Morell , P. Vargas , L. Chico , L. Brey

DOI: 10.1103/PHYSREVB.84.195421

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摘要: We investigate the electronic density redistribution of rotated bilayer graphene under a perpendicular electric field, showing that layers are actually coupled even for large angles. This layer-layer coupling is evidenced by charge transfer on these structures as function external voltage. find an inhomogeneous excess distribution related to moir\'e patterns small angles, but persists larger angles where carriers' velocity equal single layer graphene. Our results show systems all rotation

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