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The Vibrational Density-of-States of Nanobundles of Single Wall Carbon Nanotubes: An Inelastic Neutron Scattering Study

Published online by Cambridge University Press:  10 February 2011

S. Rols ,
Z. Benes ,
J.L. Sauvajol ,
P. Papanek ,
E. Anglaret ,
G. Coddens ,
A.J. Dianoux  and
J.E. Fischer
S. Rols
Affiliation:
Groupe de Dynamique des Phases Condensées (UMR CNRS 5581), Université Montpellier II, 34095 Montpellier Cedex 5, France. Institut Laue-Langevin, 38042 Grenoble, France.
Z. Benes
Affiliation:
Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia PA 19104, USA.
J.L. Sauvajol
Affiliation:
Groupe de Dynamique des Phases Condensées (UMR CNRS 5581), Université Montpellier II, 34095 Montpellier Cedex 5, France.
P. Papanek
Affiliation:
Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg MD 20899, USA.
E. Anglaret
Affiliation:
Groupe de Dynamique des Phases Condensées (UMR CNRS 5581), Université Montpellier II, 34095 Montpellier Cedex 5, France.
G. Coddens
Affiliation:
Laboratoire Leon Brillouin (CEA/CNRS), CE Saclay, 91191 Gif-sur-Yvette Cedex, France.
A.J. Dianoux
Affiliation:
Institut Laue-Langevin, 38042 Grenoble, France.
J.E. Fischer
Affiliation:
Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia PA 19104, USA.
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Abstract

The phonon density of states of single-wall carbon nanotubes (SWNT) was measured by inelastic neutron scattering (INS) in a large energy range (0 to 120 meV). New information on the vibrational dynamics of SWNT is reported and compared with calculated density-of-sates. At lower frequencies (< 12 meV) we observe a peculiar energy dependence which we attribute to contributions from inter-tube modes in the 2D lattice of SWNT bundles, and also from effects of intertube coupling on the intra-tube excitations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 593: Symposium U – Amorphous & Nanostructured Carbon , 1999 , 101
Copyright
Copyright © Materials Research Society 2000

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References

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