Phonon Density of States of Single-Wall Carbon Nanotubes
Journal Article
·
· Physical Review Letters
The vibrational density of states of single-wall carbon nanotubes (SWNT) was obtained from inelastic neutron scattering data from 0 to 225meV. The spectrum is similar to that of graphite above 40meV, while intratube features are clearly observed at 22 and 36meV. An unusual energy dependence below 10meV is assigned to contributions from intertube modes in the 2D triangular lattice of SWNT bundles, and from intertube coupling to intratube excitations. Good agreement between experiment and a calculated density of states for the SWNT lattice is found over the entire energy range.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205934
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 85; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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