Optical conductivity of disordered graphene beyond the Dirac cone approximation
arXiv:1109.3485 · doi:10.1103/PhysRevB.84.195418
Abstract
In this paper we systemically study the optical conductivity and density of states of disorded graphene beyond the Dirac cone approximation. The optical conductivity of graphene is computed by using the Kubo formula, within the framework of a full π-band tight-binding model. Different types of non-correlated and correlated disorders are considered, such as random or Gaussian potentials, random or Gaussian nearest-neighbor hopping parameters, randomly distributed vacancies or their clusters, and random adsorbed hydrogen atoms or their clusters. For a large enough concentration of resonant impurities, a new peak in the optical conductivity is found, associated to transitions between the midgap states and the Van Hove singularities of the main π-band. We further discuss the effect of doping on the spectrum, and find that small amounts of resonant impurities are enough to obtain a background contribution to the conductivity in the infra-red part of the spectrum, in agreement with recent experiments.
12 pages, 7 figures
References in corpus (33)
- The electronic properties of graphene
- Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
- Measurement of the Optical Conductivity of Graphene
- Colloquium: The transport properties of graphene: An introduction
- Universal dynamical conductance in graphite
- Optical far-infrared properties of graphene monolayer and multilayers
- The optical conductivity of graphene in the visible region of the spectrum
- A new electromagnetic mode in graphene
- Space-time dispersion of graphene conductivity
- Disorder Induced Localized States in Graphene
- Electronic transport in graphene: A semi-classical approach including midgap states
- Unusual Microwave Response of Dirac Quasiparticles in Graphene
- Electron scattering on microscopic corrugations in graphene
- AC conductivity of graphene: from tight-binding model to 2+1-dimensional quantum electrodynamics
- Modeling disorder in graphene
- Resonant scattering by realistic impurities in graphene
- On resonant scatterers as a factor limiting carrier mobility in graphene
- Modeling electronic structure and transport properties of graphene with resonant scattering centers
- Adsorbate-limited conductivity of graphene
- Effect of electron-electron interactions on the conductivity of clean graphene
- Dirac electronic states in graphene systems: Optical spectroscopy studies
- Conductivity and Fano factor in disordered graphene
- Optical Properties of Strained Graphene
- Excitation spectrum and high energy plasmons in single- and multi-layer graphene
- Conductivity of suspended and non-suspended graphene at finite gate voltage
- Origin of Universal Optical Conductivity and Optical Stacking Sequence Identification in Multilayer Graphene
- Electronic Transport in Disordered Bilayer and Trilayer Graphene
- Excitonic effects in the optical conductivity of gated graphene
- Conductivity of interacting massless Dirac particles in graphene: Collisionless regime
- Optical properties of graphene: the Fermi liquid approach
- The infrared conductivity of graphene
- Effect of electron-electron interaction on the Fermi surface topology of doped graphene
- Spectral and optical properties of doped graphene with charged impurities in the self-consistent Born approximation
Cited by in corpus (29)
- Graphene Plasmonics for Terahertz to Mid-Infrared Applications
- Optical transmittance of multilayer graphene
- Effect of Point Defects on the Optical and Transport Properties of MoS2 and WS2
- Transport and Optical Properties of Single- and Bilayer Black Phosphorus with Defects
- Linear Scaling Quantum Transport Methodologies
- Effect of structural relaxation on the electronic structure of graphene on hexagonal boron nitride
- Transport and optical properties of an electron gas in a Sierpinski carpet
- Modeling Klein tunneling and caustics of electron waves in graphene
- The impact of disorder on Dirac plasmon losses
- Nonlinear photocurrents in two-dimensional systems based on graphene and boron nitride
- Tunable optical absorption and interactions in graphene via oxygen plasma
- Electronic Properties of Disordered Graphene Antidot Lattices
- Screening and plasmons in pure and disordered single- and bilayer black phosphorus
- Multiple Quantum Phases in Graphene with Enhanced Spin-Orbit Coupling: From the Quantum Spin Hall Regime to the Spin Hall Effect and a Robust Metallic State
- Chiral anomaly and strength of the electron-electron interaction in graphene
- Some optical properties of graphite from IR to millimetric wavelengths
- Tunable magneto-optical properties of single-layer tin diselenide: From GW approximation to large-scale tight-binding calculations
- Optical Hall effect in strained graphene
- Interplay of intra- and interband absorption in a disordered graphene
- Electric Field Tunable Band Gap in Commensurate Twisted Bilayer Graphene
- Symmetry and optical selection rules in graphene quantum dots
- Study of Thermal Properties of Graphene-Based Structures Using the Force Constant Method
- Effects of disorder and contacts on transport through graphene nanoribbons
- Screening and Collective Modes in Disordered Graphene Antidot Lattices
- Effects of long-range disorder and electronic interactions on the optical properties of graphene quantum dots
- Optical properties of two dimensional Dirac Weyl materials with a flatband
- Effects of structural and chemical disorders on the visible/UV spectra of carbonaceous interstellar grains
- The contribution of CHONS particles to the diffuse high Galactic latitude IR emission
- Strain- and doping-tunable optical resonance in Kekulé-Y graphene