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arXiv · 1010.1036

Charge transport in dual gated bilayer graphene with Corbino geometry

Jun Yan·Michael S. Fuhrer
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Abstract

The resistance of dual-gated bilayer graphene is measured as a function of temperature and gating electric fields in the Corbino geometry which precludes edge transport. The temperature-dependent resistance is quantitatively described by a two channel conductance model including parallel thermal activation and variable range hopping channels, which gives the electric-field-dependent band gap whose magnitude is found to be in good agreement with infrared absorption experiments. Low temperature transport is similar to previous studies of dual-gated bilayer graphene with edges, suggesting that edge transport does not play an important role.

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Jun Yan, Michael S. Fuhrer. 2010-10-05. Charge transport in dual gated bilayer graphene with Corbino geometry. https://doi.org/10.1021/nl102459t

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