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Transport properties of graphene in the high-current limit

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arxiv 0906.0188 v1 pith:BQJWBQD3 submitted 2009-05-31 cond-mat.mes-hall

Transport properties of graphene in the high-current limit

Amelia Barreiro , Michele Lazzeri , Joel Moser , Francesco Mauri , Adrian Bachtold This is my paper
classification cond-mat.mes-hall
keywords graphenehigh-currentpropertiessaturationscatteringtransportacrossbecause
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We present a detailed study of the high-current transport properties of graphene devices patterned in a four-point configuration. The current tends to saturate as the voltage across graphene is increased but never reaches the complete saturation as in metallic nanotubes. Measurements are compared to a model based on the Boltzmann equation, which includes electron scattering processes due to charged and neutral impurities, and graphene optical-phonons. The saturation is incomplete because of the competition between disorder and optical-phonon scattering.

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