Phonon trigonal warping effect in graphite and carbon nanotubes

Ge G. Samsonidze, R. Saito, A. Jorio, A. G. Souza Filho, A. Grüneis, M. A. Pimenta, G. Dresselhaus, M. S. Dresselhaus

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)


Trigonal warping-type effects in the phonon dispersion relations of graphite were directly measured based on the wave vector selective nature of the DR Raman process combined with quantum confinement of the wave vectors in low-dimensional systems. Valuable information on the anisotropy of the 2D graphite phonon dispersion relations was obtained.

Original languageEnglish
Article number027403
Pages (from-to)027403/1-027403/4
JournalPhysical review letters
Issue number2
Publication statusPublished - 2003 Jan 17
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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