Zone-Boundary Phonon Induced Mini Band Gap Formation in Graphene
arXiv:1211.3528 · doi:10.1016/j.ssc.2013.09.012
Abstract
We investigate the effect of electron- phonon coupling on the gapless electronic band dispersion of the pristine graphene. The electron-phonon interaction is introduced through a Kekulé-type distortion giving rise to inter-valley scattering between K and K' points in graphene. We develop a Fröhlich type Hamiltonian within the continuum model in the long wave length limit. By presenting a fully theoretical analysis, we show that the interaction of charge carriers with the highest frequency zone-boundary phonon mode of -symmetry induces a mini band gap at the corners of the two-dimensional Brillouin zone of the graphene. Since electron-electron interactions favor this type of lattice distortion, it is expected to be enhanced, and thus its quantitative implications might be measurable in graphene.
References in corpus (25)
- Electric Field Effect in Atomically Thin Carbon Films
- Two Dimensional Atomic Crystals
- Substrate-induced band gap opening in epitaxial graphene
- Electric Field Effect Tuning of Electron-Phonon Coupling in Graphene
- Phonon Linewidths and Electron Phonon Coupling in Nanotubes
- Impact of the electron-electron correlation on phonon dispersions: failure of LDA and GGA functionals in graphene and graphite
- Electron Transport and Hot Phonons in Carbon Nanotubes
- Velocity Renormalization and Carrier Lifetime in Graphene from Electron-Phonon Interaction
- Electron-phonon coupling and electron self-energy in electron-doped graphene: calculation of angular resolved photoemission spectra
- Theory of resonant multiphonon Raman scattering in graphene
- Plasmon-phonon coupling in graphene
- Interplay of Coulomb and electron-phonon interactions in graphene
- Conductivity of suspended and non-suspended graphene at finite gate voltage
- Filling-Factor-Dependent Magnetophonon Resonance in Graphene
- Effect of Holstein phonons on the electronic properties of graphene
- Band gap opening by two-dimensional manifestation of Peierls instability in graphene
- Kohn anomaly and interplay of electron-electron and electron-phonon interactions in epitaxial graphene
- Effect of inelastic collisions on multiphonon Raman scattering in graphene
- Phonon self-energy corrections to non-zero wavevector phonon modes in single-layer graphene
- Lattice gauge theory model for graphene
- Polaronic signatures and spectral properties of graphene antidot lattices
- Chiral Polaron Formation in Graphene
- Chiral symmetry restoration in monolayer graphene induced by Kekule distortion
- Electron-phonon bound states in graphene in a perpendicular magnetic field
- Electron-phonon bound state in graphene