Impurity-assisted tunneling in graphene
arXiv:cond-mat/0611029 · doi:10.1209/0295-5075/79/17004
Abstract
The electric conductance of a strip of undoped graphene increases in the presence of a disorder potential, which is smooth on atomic scales. The phenomenon is attributed to impurity-assisted resonant tunneling of massless Dirac fermions. Employing the transfer matrix approach we demonstrate the resonant character of the conductivity enhancement in the presence of a single impurity. We also calculate the two-terminal conductivity for the model with one-dimensional fluctuations of disorder potential by a mapping onto a problem of Anderson localization.
6 pages, 3 figures, final version, typos corrected, references added
References in corpus (10)
- Electric Field Effect in Atomically Thin Carbon Films
- Detection of Individual Gas Molecules Absorbed on Graphene
- Electron transport in disordered graphene
- Transport in chemically doped graphene in the presence of adsorbed molecules
- Quantum criticality and minimal conductivity in graphene with long-range disorder
- Landauer conductance and twisted boundary conditions for Dirac fermions in two space dimensions
- Notes on the minimal longitudinal dc conductivity of perfect bilayer graphene
- Band-center anomaly of the conductance distribution in one-dimensional Anderson localization
- Transport regimes in surface disordered graphene sheets
- Non-monotonic disorder-induced enhanced tunneling
Cited by in corpus (12)
- The electronic properties of graphene
- Shot Noise in Ballistic Graphene
- Transport in chemically doped graphene in the presence of adsorbed molecules
- Electrostatic confinement of electrons in an integrable graphene quantum dot
- Spatial distribution of local currents of massless Dirac fermions in quantum transport through graphene nanoribbons
- Anderson localization of electron states in graphene in different types of disorder
- Ballistic transport in disordered graphene
- Conformal mapping and shot noise in graphene
- Tunneling of Dirac electrons through spatial regions of finite mass
- Nonequilibrium valley polarization in graphene nanoconstrictions
- Valley polarization effects on the localization in graphene Landau levels
- Disorder-induced pseudodiffusive transport in graphene nanoribbons