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Journal Articles The European Physical Journal Special Topics Year : 2007

Optical phonons of graphene and nanotubes

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S. Piscanec
  • Function : Author
A. C. Ferrari
  • Function : Author

Abstract

We review the optical phonon dispersions of graphene. In particular, we focus on the presence of two Kohn anomalies in the highest optical phonon branch at the Γ and K points of the Brillouin zone. We then show how graphene can be used as a model for the calculation of phonons in carbon nanotubes. Finally, we present the beyond Born-Oppenheimer corrections to their phonon dispersions. These are experimentally revealed in the Raman spectra of doped samples.
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insu-03603180 , version 1 (09-03-2022)

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S. Piscanec, M. Lazzeri, F. Mauri, A. C. Ferrari. Optical phonons of graphene and nanotubes. The European Physical Journal Special Topics, 2007, 148, pp.159-170. ⟨10.1140/epjst/e2007-00236-2⟩. ⟨insu-03603180⟩
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