Unconventional quasiparticle lifetime in graphite

Details Unconventional quasiparticle lifetime in graphite Unconventional quasiparticle lifetime in graphite

1996-03-15

arxiv.org/abs/cond-mat/9603113v1

Physics

Condensed Matter

Latex file (4 pages) + 4 figures (postscript)

Scientific paper

10.1103/PhysRevLett.77.3589

The influence of electron-electron scattering on quasiparticle lifetimes in graphite is calculated. In the limit when the Fermi surface is reduced to isolated points in the Brillouin Zone, the suppression of screening leads to non Fermi liquid behavior. The inverse lifetime increases linearly with energy, in agreement with recent experiments. Similar features should also be present in narrow gap semiconductors, and in carbon nanotubes.

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