Tight--binding description of the quasiparticle dispersion of graphite and few--layer graphene

Abstract

A universal set of third--nearest neighbour tight--binding (TB) parameters is presented for calculation of the quasiparticle (QP) dispersion of $N$ stacked $s{p}^2$ graphene layers ($N=1...\infty$) with $AB$ stacking sequence. The QP bands are strongly renormalized by electron--electron interactions which results in a 20% increase of the nearest neighbour in--plane and out--of--plane TB parameters when compared to band structure from density functional theory. With the new set of TB parameters we determine the Fermi surface and evaluate exciton energies, charge carrier plasmon frequencies and the conductivities which are relevant for recent angle--resolved photoemission, optical, electron energy loss and transport measurements. A comparision of these quantitities to experiments yields an excellent agreement. Furthermore we discuss the transition from few layer graphene to graphite and a semimetal to metal transition in a TB framework.

Corresponding author: A. Grüneis Tel.: +49 351 4659 519 e--mail: [email protected]

References in corpus (13)

• Electric Field Effect in Atomically Thin Carbon Films
• Two Dimensional Atomic Crystals
• Chiral tunneling and the Klein paradox in graphene
• Ultrathin epitaxial graphite: 2D electron gas properties and a route toward graphene-based nanoelectronics
• First direct observation of Dirac fermions in graphite
• Graphite and graphene as perfect spin filters
• Probing the Electronic Structure of Bilayer Graphene by Raman Scattering
• Impact of the electron-electron correlation on phonon dispersions: failure of LDA and GGA functionals in graphene and graphite
• Origin of the energy bandgap in epitaxial graphene
• Band-Contact Lines in Electron Energy Spectrum of Graphite
• Dirac fermions at the H point of graphite: Magneto-transmission studies
• Coexistence of sharp quasiparticle dispersions and disorder features in graphite
• Theory of superconductivity of carbon nanotubes and graphene

Cited by in corpus (5)

• Charge Transport in Disordered Graphene-Based Low Dimensional Materials
• How perfect can graphene be?
• Graphite from the viewpoint of Landau level spectroscopy: An effective graphene bilayer and monolayer
• Electron-electron interactions in graphene bilayers
• I-V curve signatures of nonequilibrium-driven band gap collapse in magnetically ordered zigzag graphene nanoribbon two-terminal devices