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Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction

Cited 172 time in Web of Science Cited 186 time in Scopus
Authors

Park, Cheol-Hwan; Giustino, Feliciano; Cohen, Marvin L.; Louie, Steven G.

Issue Date
2007-08
Publisher
American Physical Society
Citation
Physical Review Letters, Vol.99 No.8, p. 086804
Abstract
We present a first-principles investigation of the phonon-induced electron self-energy in graphene. The energy dependence of the self-energy reflects the peculiar linear band structure of graphene and deviates substantially from the usual metallic behavior. The effective band velocity of the Dirac fermions is found to be reduced by 4%-8%, depending on doping, by the interaction with lattice vibrations. Our results are consistent with the observed linear dependence of the electronic linewidth on the binding energy in photoemission spectra. © 2007 The American Physical Society.
ISSN
0031-9007
URI
https://hdl.handle.net/10371/202425
DOI
https://doi.org/10.1103/PhysRevLett.99.086804
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  • College of Natural Sciences
  • Department of Physics and Astronomy
Research Area Condensed Matter Physics, Nanoscale Photonics, Nanoscale Physics, 나노 물리와 나노 광자학, 응집 물질 물리

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