Phonon Density of States of Single-Wall Carbon Nanotubes

Journal Article · Mon Dec 11 00:00:00 EST 2000 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.85.5222· OSTI ID:40205934

Rols, S; Benes, Z; Anglaret, E; Sauvajol, J L; Papanek, P; Fischer, J E; Coddens, G; Schober, H; Dianoux, A J

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, Vol. 85, Issue 24; Other Information: Othernumber: PRLTAO000085000024005222000001; 072050PRL; PBD: 11 Dec 2000; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CARBON
ENERGY DEPENDENCE
ENERGY RANGE
GRAPHITE
NEUTRONS
PHONONS
SCATTERING