Hopping-resolved electron-phonon coupling in bilayer graphene

Abstract

In this paper we investigate the electron-phonon coupling in bilayer graphene, as a paradigmatic case for multilayer graphenes where interlayer hoppings are relevant. Using a frozen-phonon approach within the context of Density Functional Theory (DFT) and using different optical phonon displacements we are able to evaluate quantitatively the electron-phonon coupling ${\alpha }_i$ associated with each hopping term ${\gamma }_i$. This analysis also reveals a simple scaling law between the hopping terms ${\gamma }_i$ and the electron-phonon coupling ${\alpha }_i$ which goes beyond the specific DFT technique employed.

10 pages, 10 figs

References in corpus (19)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• The electronic properties of graphene
• The Raman Fingerprint of Graphene
• Intrinsic and Extrinsic Performance Limits of Graphene Devices on SiO2
• Electric Field Effect Tuning of Electron-Phonon Coupling in Graphene
• Controlling electron-phonon interactions in graphene at ultra high carrier densities
• Acoustic phonon scattering limited carrier mobility in 2D extrinsic graphene
• Substrate limited electron dynamics in graphene
• Band Structure of ABC-Stacked Graphene Trilayers
• Determination of the electronic structure of bilayer graphene from infrared spectroscopy results
• Impact of the electron-electron correlation on phonon dispersions: failure of LDA and GGA functionals in graphene and graphite
• Tight--binding description of the quasiparticle dispersion of graphite and few--layer graphene
• Observation of Anomalous Phonon Softening in Bilayer Graphene
• Gate-induced interlayer asymmetry in ABA-stacked trilayer graphene
• Observation of Distinct Electron-Phonon Couplings in Gated Bilayer Graphene
• Strained bilayer graphene: Band structure topology and Landau level spectrum
• Doped graphene as tunable electron-phonon coupling material
• Temperature dependent resistivity in bilayer graphene due to flexural phonons
• Phonon switching and combined Fano-Rice effect in optical spectra of bilayer graphene

Cited by in corpus (1)

• Charged-phonon theory and Fano effect in the optical spectroscopy of bilayer graphene