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arXiv · 1101.0299

Conductivity of graphene on boron nitride substrates

S. Das Sarma·E. H. Hwang
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Abstract

We calculate theoretically the disorder-limited conductivity of monolayer and bilayer graphene on hexagonal boron nitride (h-BN) substrates, comparing our theoretical results with the recent experimental results. The comparison leads to a direct quantitative estimate of the underlying disorder strength for both short-range and long-range disorder in the graphene on h-BN system. We find that the good interface quality between graphene and h-BN leads to strongly suppressed charged impurity scattering compared with the corresponding SiO$_2$ substrate case, thus producing very high mobility for the graphene on h-BN system.

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S. Das Sarma, E. H. Hwang. 2010-12-31. Conductivity of graphene on boron nitride substrates. https://doi.org/10.1103/physrevb.83.121405

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