Low energy excitations in fullerene dimers and in single wall carbon nanotubes

Citation
H. Kuzmany et al., Low energy excitations in fullerene dimers and in single wall carbon nanotubes, FERROELECTR, 249(1-2), 2001, pp. 125-134
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
249
Issue
1-2
Year of publication
2001
Pages
125 - 134
Database
ISI
SICI code
0015-0193(2001)249:1-2<125:LEEIFD>2.0.ZU;2-X
Abstract
Low energy vibrational excitations in single bonded fullerene dimeres (C59N )(2) and (C-60(-))(2) and in single wall carbon nanotubes were investigated by Raman spectroscopy. The two isoelectronic and isostructural dimeres exh ibited very similar spectra with strongly resonance enhanced lines for the radial modes if excitation was with a red laser. For the biazafullerene for the first time all three geometrically allowed intercage modes could be id entified. For the single wall carbon nanotubes the response from the radial breathing mode was analyzed for excitation with 20 different laser lines. The results were found to be consistent with contributions from all geometr ically allowed tubes and a strong contribution to the force constant from i ntercage interaction.