Chirality-dependent G-band Raman intensity of carbon nanotubes

R. Saito, A. Jorio, J. H. Hafner, C. M. Lieber, M. Hunter, T. McClure, G. Dresselhaus, and M. S. Dresselhaus
Phys. Rev. B 64, 085312 – Published 7 August 2001
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Abstract

The chirality-dependent G-band Raman intensity of single wall carbon nanotubes is calculated using a nonresonant theory for the Raman tensor. We obtain six or three intense Raman modes, respectively, for chiral or achiral nanotubes, whose relative intensities depend on the chiral angle of the nanotube. The longitudinal and transverse optical phonon modes in two-dimensional graphite become, respectively, transverse and longitudinal optical phonon modes in a one-dimensional nanotube. Confocal micro-Raman measurements of individual single wall carbon nanotubes show chirality-dependent spectra of the G-band intensity, as predicted by this theory.

  • Received 10 September 2000

DOI:https://doi.org/10.1103/PhysRevB.64.085312

©2001 American Physical Society

Authors & Affiliations

R. Saito1, A. Jorio2, J. H. Hafner3, C. M. Lieber3, M. Hunter4, T. McClure5, G. Dresselhaus6, and M. S. Dresselhaus7

  • 1Department of Electronic-Engineering, University of Electro-Communications, Tokyo, 182-8585 Japan
  • 2Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307
  • 3Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138
  • 4Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307
  • 5Center for Materials Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307
  • 6Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307
  • 7Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307

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Vol. 64, Iss. 8 — 15 August 2001

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