Electron scattering on microscopic corrugations in graphene

Abstract

We discuss various scattering mechanisms for Dirac fermions in single-layer graphene. It is shown that scattering on a short-range potential (due to, for example, 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 on carrier concentration, in agreement with experimental observations.

Final version, to be published in Philos. Trans. Royal Soc. A

References in corpus (4)

• Electric Field Effect in Atomically Thin Carbon Films
• Two Dimensional Atomic Crystals
• Atomic Structure of Graphene on SiO2
• Vacuum Polarization and Screening of Supercritical Impurities in Graphene

Cited by in corpus (10)

• Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
• Suspended Graphene: a bridge to the Dirac point
• Theory of Anomalous Quantum Hall Effects in Graphene
• Midgap states in corrugated graphene: Ab-initio calculations and effective field theory
• Density inhomogeneity driven percolation metal-insulator transition and dimensional crossover in graphene nanoribbons
• Scattering mechanisms and Boltzmann transport in graphene
• Optical properties of graphene: the Fermi liquid approach
• Conductivity of graphene: How to distinguish between samples with short and long range scatterers
• Long-range correlations in disordered graphene
• Suppression of magnetotransport in strongly disordered graphene