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Nature of the constant factor in the relation between radial breathing mode frequency and tube diameter for single-wall carbon nanotubes

  • P. T. Araujo
  • , I. O. Maciel
  • , P. B.C. Pesce
  • , M. A. Pimenta
  • , S. K. Doorn
  • , H. Qian
  • , A. Hartschuh
  • , M. Steiner
  • , L. Grigorian
  • , K. Hata
  • , A. Jorio

Research output: Contribution to journalArticlepeer-review

204 Scopus citations

Abstract

Resonance Raman scattering is used to determine the radial breathing mode (RBM) frequency (ωRBM) dependence on tube diameter (dt) for single-wall carbon nanotubes (SWNTs). We establish experimentally the ωRBM =227.0/ dt as the fundamental relation for pristine SWNTs. All the other RBM values found in the literature can be explained by an upshift in frequency due mostly to van der Waals interaction between SWNTs and environment.

Original languageEnglish
Article number241403
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number24
DOIs
StatePublished - Jun 25 2008

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