Conductivity of graphene on boron nitride substrates
arXiv:1101.0299 · doi:10.1103/PhysRevB.83.121405
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 substrate case, thus producing very high mobility for the graphene on h-BN system.
arXiv comment5 pages, 4 figures
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