Transport Properties of Graphene Nanoroads in Boron-Nitride Sheets

Details Transport Properties of Graphene Nanoroads in Boron-Nitride Sheets Transport Properties of Graphene Nanoroads in Boron-Nitride Sheets

2012-04-23

arxiv.org/abs/1204.5210v1

Nano Letters (2012)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

15pages, 6 figures

Scientific paper

10.1021/nl300610w

We demonstrate that the one-dimensional (1D) transport channels that appear in the gap when graphene nanoroads are embedded in boron-nitride (BN) sheets are more robust when they are inserted at AB/BA grain boundaries. Our conclusions are based on ab-initio electronic structure calculations for a variety of different crystal orientations and bonding arrangements at the BN/C interfaces. This property is related to the valley-Hall conductivity present in the BN band structure and to the topologically protected kink states that appear in continuum Dirac models with position dependent masses.

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