Carrier transport in two-dimensional graphene layers.
By E. Hwang, S. Adam. Physical Review Letters, 2006
1,050 citations recorded by the source corpus.
Carrier transport in gated 2D graphene monolayers is considered in the presence of scattering by random charged impurity centers with density n(i). Excellent quantitative agreement is obtained (for carrier density n>10(12) cm(-2)) with existing experimental data. The conductivity scales linearly with n/n(i) in the theory. We explain the experimentally observed asymmetry between electron and hole conductivities, and the high-density saturation of conductivity for the highest mobility samples. We argue that the experimentally observed saturation of conductivity at low density arises from the charged impurity induced inhomogeneity in the graphene carrier density which becomes severe for n less, similarn(i) approximately 10(12) cm(-2).
Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/3770d49d7a80c88a1af060e9b85bc9a86dd21476
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Citations in the corpus
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