Electron-phonon coupling in potassium-doped graphene: Angle-resolved photoemission spectroscopy

Abstract

The electron-phonon coupling in potassium-doped graphene on Ir(111) is studied via the renormalization of the pi* band near the Fermi level, using angle-resolved photoemission spectroscopy. The renormalization is found to be fairly weak and almost isotropic, with a mass enhancement parameter of lambda= 0.28(6) for both the K-M and the K-G direction. These results are found to agree well with recent first principles calculations.

arXiv comment5 pages, 3 figures

References in corpus (9)

• Dirac Cones and Minigaps for Graphene on Ir(111)
• Impact of the electron-electron correlation on phonon dispersions: failure of LDA and GGA functionals in graphene and graphite
• Electron-phonon coupling and electron self-energy in electron-doped graphene: calculation of angular resolved photoemission spectra
• Interplay of Coulomb and electron-phonon interactions in graphene
• Self-consistent self-energy analysis of photoemission data
• Bare electron dispersion from photoemission experiments
• Anisotropic Electron-Phonon Coupling and Dynamical Nesting on the Graphene Sheets in CaC6
• First-Principles Study of Electron Linewidths in Graphene
• Van Hove Singularity and Apparent Anisotropy in the Electron-Phonon Interaction in Graphene

Cited by in corpus (40)

• Electron-phonon interactions from first principles
• Evidence for superconductivity in Li-decorated monolayer graphene
• Colloquium: Graphene spectroscopy
• The mechanism of caesium intercalation of graphene
• In-plane orientation effects on the electronic structure, stability and Raman scattering of monolayer graphene on Ir(111)
• Strong electron-phonon coupling, electron-hole asymmetry, and nonadiabaticity in magic-angle twisted bilayer graphene
• Unraveling the acoustic electron-phonon interaction in graphene
• Graphene on Ir(111) characterized by angle-resolved photoemission
• Graphene growth and properties on metal substrates
• Large Bandgap Opening Between Graphene Dirac Cones Induced by Na Adsorption onto an Ir Superlattice
• Two-gap superconductivity in heavily n-doped graphene: ab initio Migdal-Eliashberg theory
• Phonons in potassium doped graphene: the effects of electron-phonon interactions, dimensionality and ad-atom ordering
• The electronic structure of clean and adsorbate-covered Bi2Se3: an angle-resolved photoemission study
• General approach to the understanding the electronic structure of graphene on metals
• Possibility of superconductivity due to electron-phonon interaction in graphene
• Magneto-optical conductivity in graphene including electron-phonon coupling
• Finding the bare band: Electron coupling to two phonon modes in potassium-doped graphene on Ir(111)
• Origin of the flat band in heavily Cs doped graphene
• Electron-Phonon Coupling in Highly-Screened Graphene
• Electron-phonon coupling in quasi free-standing graphene
• Dynamical Floquet spectrum of Kekulé-distorted graphene under normal incidence of electromagnetic radiation
• High-temperature behaviour of supported graphene: electron-phonon coupling and substrate-induced doping
• Strong electron-phonon coupling in the sigma band of graphene
• Phonon-mediated superconductivity in doped monolayer materials
• Ytterbium-driven strong enhancement of electron-phonon coupling in graphene
• Electron-magnon coupling and quasiparticle lifetimes on the surface of a topological insulator
• Effects of electron-phonon coupling on Landau levels in graphene
• Accessing the spectral function in a current-carrying device
• Spectroscopic investigations of phonons in epitaxial graphene
• Monolayer charge-neutral graphene on platinum with extremely weak electron-phonon coupling
• Role played by strain on Plasmons, screening and energy loss in Graphene/substrate contacts
• Metal adsorption and nucleation on free-standing graphene by low-energy electron point source microscopy (graphene intercalation)
• Phonon structures in the electronic density of states of graphene in magnetic field
• Optical Self Energy in Graphene due to Correlations
• Signatures of adatom effects in the quasiparticle spectrum of Li-doped graphene
• About two-dimensional fits for the analysis of the scattering rates and renormalization functions from angle-resolved photoelectron spectroscopy data
• Electronic structure of 2D van der Waals crystals and heterostructures investigated by spatially- and angle-resolved photoemission
• Distinguishing Coulomb and electron-phonon interactions for massless Dirac fermions
• Wavepacket spreading dynamics under a non-instantaneous nonlinearity: Self-trapping, defocusing and focusing
• Floquet-Engineered Valley-Topotronics in Kekulé-Y Bond Textured Graphene Superlattice