The anomalous dispersion of the disorder-induced and the second-order Raman bands in carbon nanotubes

Authors
Pimenta, MA Hanlon, EB Marucci, A Corio, P Brown, SDM Empedocles, SA Bawendi, MG Dresselhaus, G Dresselhaus, MS
Citation
Ma. Pimenta et al., The anomalous dispersion of the disorder-induced and the second-order Raman bands in carbon nanotubes, BRAZ J PHYS, 30(2), 2000, pp. 423-427
Citations number
15
Categorie Soggetti
Physics
Journal title
BRAZILIAN JOURNAL OF PHYSICS
ISSN journal
01039733 → ACNP
Volume
30
Issue
2
Year of publication
2000
Pages
423 - 427
Database
ISI
SICI code
0103-9733(200006)30:2<423:TADOTD>2.0.ZU;2-A
Abstract
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 se veral laser excitation energies (E-laser) in the range 1.5-3.0 eV. An anoma lous step-like behavior was observed in the E-laser dependence of the G'-ba nd frequency. This result is interpreted as a manifestation of the one-dime nsional (1D) behavior of the phonon spectrum in carbon nanotubes.