Effects of optical and surface polar phonons on the optical conductivity of doped graphene
arXiv:1211.3329 · doi:10.1103/PhysRevB.87.035414
Abstract
Using the Kubo linear response formalism, we study the effects of intrinsic graphene optical and surface polar phonons (SPPs) on the optical conductivity of doped graphene. We find that inelastic electron-phonon scattering contributes significantly to the phonon-assisted absorption in the optical gap. At room temperature, this midgap absorption can be as large as 20-25% of the universal ac conductivity for graphene on polar substrates due to strong electron-SPP coupling. The midgap absorption, moreover, strongly depends on the substrates and doping levels used. With increasing temperature, the midgap absorption increases, while the Drude peak, on the other hand, becomes broader as inelastic electron-phonon scattering becomes more probable. Consequently, the Drude weight decreases with increasing temperature.
arXiv comment10 pages, 6 figures
References in corpus (47)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Graphene: Status and Prospects
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
- Ultrahigh electron mobility in suspended graphene
- Graphene Photonics and Optoelectronics
- Electronic transport in two dimensional graphene
- Suspended Graphene: a bridge to the Dirac point
- Intrinsic and Extrinsic Performance Limits of Graphene Devices on SiO2
- Measurement of the Optical Conductivity of Graphene
- Dielectric function, screening, and plasmons in 2D graphene
- Electronic Properties of Disordered Two-Dimensional Carbon
- Dynamical polarization of graphene at finite doping
- Colloquium: The transport properties of graphene: An introduction
- Optical far-infrared properties of graphene monolayer and multilayers
- Kohn Anomalies and Electron-Phonon Interaction in Graphite
- The optical conductivity of graphene in the visible region of the spectrum
- Drude Conductivity of Dirac Fermions in Graphene
- Transport of Dirac quasiparticles in graphene: Hall and optical conductivities
- Substrate limited electron dynamics in graphene
- Energy dissipation in graphene field-effect transistors
- Electron-phonon effects and transport in carbon nanotubes
- Impact of the electron-electron correlation on phonon dispersions: failure of LDA and GGA functionals in graphene and graphite
- Effect of high-K dielectrics on charge transport in graphene
- Inelastic Scattering and Current Saturation in Graphene
- Electron Transport and Hot Phonons in Carbon Nanotubes
- Screening induced temperature dependent transport in 2D graphene
- First Principles Analysis of Electron-Phonon Interaction in Graphene
- Transport properties of graphene in the high-current limit
- Anomalous Absorption Line in the Magneto-Optical Response of Graphene
- Drude weight, plasmon dispersion, and a.c. conductivity in doped graphene sheets
- Cooling of photoexcited carriers in graphene by internal and substrate phonons
- Conductivity of suspended and non-suspended graphene at finite gate voltage
- Surface Polar Phonon Dominated Electron Transport in Graphene
- The Effects of Substrate Phonon Mode Scattering on Transport in Carbon Nanotubes
- Mechanism for current saturation and energy dissipation in graphene transistors
- Theory of Interfacial Plasmon-Phonon Scattering in Supported Graphene
- Excitonic effects in the optical conductivity of gated graphene
- Effect of electron-phonon interaction on spectroscopies in graphene
- Magneto-optical conductivity in graphene including electron-phonon coupling
- Non-linear resistivity and heat dissipation in monolayer graphene
- Optical and transport gaps in gated bilayer graphene
- Interplay of intra- and interband absorption in a disordered graphene
- Spectral and optical properties of doped graphene with charged impurities in the self-consistent Born approximation
- Comparison of microscopic models for disorder in bilayer graphene: Implications for the density of states and the optical conductivity
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- Magneto-optical conductivity of graphene on polar substrates
- Spin-reorientation-induced band gap in FeSn: Optical signatures of Weyl nodes
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- Scaling of graphene field-effect transistors supported on hexagonal boron nitride: radio-frequency stability as a limiting factor
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- Screening effect on the optical absorption in graphene and metallic monolayers
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