%0 Journal Article
%T The anomalous dispersion of the disorder-induced and the second-order Raman Bands in Carbon Nanotubes
%A Pimenta M. A.
%A Hanlon E. B.
%A Marucci A.
%A Corio P.
%J Brazilian Journal of Physics
%D 2000
%I Scientific Electronic Library Online
%X In this work we have studied the dispersion of the disorder-induced (D) and the second-order (G') Raman bands in single wall carbon nanotubes using several laser excitation energies (E laser) in the range 1.5-3.0 eV. An anomalous step-like behavior was observed in the E laser dependence of the G'-band frequency. This result is interpreted as a manifestation of the one-dimensional (1D) behavior of the phonon spectrum in carbon nanotubes.
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332000000200026