First principles study of electronic transport through a Cu(111)|graphene junction

Jesse Maassen; Wei Ji; Hong Guo

doi:10.1063/1.3496490

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arXiv · 1009.1066

First principles study of electronic transport through a Cu(111)|graphene junction

Jesse Maassen·Wei Ji·Hong Guo

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Abstract

We report first principles investigations of the nonequilibrium transport properties of a Cu(111)|graphene interface. The Cu(111) electrode is found to induce a transmission minimum (TM) located -0.68eV below the Fermi level, a feature originating from the Cu-induced charge transfer resulting in n-type doped graphene with the Dirac point coinciding with the TM. An applied bias voltage shifts the n-graphene TM relative to the pure graphene TM and leads to a distinctive peak in the differential conductance indicating the doping level, a characteristic not observed in pure graphene.

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Jesse Maassen, Wei Ji, Hong Guo. 2010-09-06. First principles study of electronic transport through a Cu(111)|graphene junction. https://doi.org/10.1063/1.3496490

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