Abstract
We discuss various scattering mechanisms for Dirac fermions in single-layer graphene. It is shown that scattering on a short-range potential (e.g. due to neutral impurities) is mostly irrelevant for electronic quality of graphene, which is likely to be controlled by charged impurities and ripples (microscopic corrugations of a graphene sheet). The latter are an inherent feature of graphene due to its two-dimensional nature and can also be an important factor in defining the electron mean-free path. We show that certain types of ripples create a long-range scattering potential, similar to Coulomb scatterers, and result in charge-carrier mobility practically independent of carrier concentration, in agreement with experimental observations.
Keywords
GrapheneScatteringCondensed matter physicsMean free pathElectronImpurityCarrier scatteringElectron mobilityElectron scatteringMaterials scienceCharge carrierDirac fermionCoulombBilayer grapheneRange (aeronautics)PhysicsNanotechnologyOpticsQuantum mechanics
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Publication Info
- Year
- 2007
- Type
- article
- Volume
- 366
- Issue
- 1863
- Pages
- 195-204
- Citations
- 540
- Access
- Closed
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Cite This
M. I. Katsnelson,
A. K. Geǐm
(2007).
Electron scattering on microscopic corrugations in graphene.
Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences
, 366
(1863)
, 195-204.
https://doi.org/10.1098/rsta.2007.2157
Identifiers
- DOI
- 10.1098/rsta.2007.2157