Anomalous Quasiparticle Lifetime in Graphite: Band Structure Effects

Preprint

3 July 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0107043

Abstract

We report ab initio calculation of quasiparticle lifetimes in graphite, as determined from the imaginary part of the self-energy operator within the GW aproximation. The inverse lifetime in the energy range from 0.5 to 3.5 eV above the Fermi level presents significant deviations from the quadratic behavior naively expected from Fermi liquid theory. The deviations are explained in terms of the unique features of the band structure of this material. We also discuss the experimental results from different groups and make some predictions for future experiments.

Keywords

ANOMALOUS QUASIPARTICLE
QUASIPARTICLE LIFETIME
AB INITIO CALCULATION
LIFETIMES IN GRAPHITE
BAND STRUCTURE
REPORT AB

All Related Versions

Version 1, 2001-07-03, ArXiv
Published version: Physical Review Letters, 87 (24), 246405.

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