Effect of a gap opening on the conductance of graphene superlattices

Details Effect of a gap opening on the conductance of graphene superlattices Effect of a gap opening on the conductance of graphene superlattices

2009-12-19

arxiv.org/abs/0912.3869v1

Solid State Commun. 150, 655 (2010)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

14 pages, 5 figures. To appear in Solid State Communications

Scientific paper

The electronic transmission and conductance of a gapped graphene superlattice were calculated by means of the transfer-matrix method. The system that we study consists of a sequence of electron-doped graphene as wells and hole-doped graphene as barriers. We show that the transmission probability approaches unity at some critical value of the gap. We also find that there is a domain around the critical gap value for which the conductance of the system attains its maximum value.

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