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Suppression of magnetotransport in strongly disordered graphene

K. Ziegler
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Abstract

A tight-binding model with randomly fluctuating atomic positions is studied to discuss the effect of strong disorder in graphene. We employ a strong-disorder expansion for the transport quantities and find a diffusive behavior, where the conductivity is decreasing with increasing disorder. Surprisingly, the magnetic field drops out of the transport quantities in leading order of this expansion. This signals a strong suppression of magnetotransport effects for sufficiently strong disorder. This result is consistent with recent experimental observations by Morozov {\it et al.}

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K. Ziegler. 2008-03-30. Suppression of magnetotransport in strongly disordered graphene. https://doi.org/10.1103/physrevlett.100.166801

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