Phonon density of states of single-wall carbon nanotubes

被引：68

作者：

Rols, S ^{[1
]}

Benes, Z

Anglaret, E

Sauvajol, JL

Papanek, P

Fischer, JE

Coddens, G

Schober, H

Dianoux, AJ

机构：

[1] Univ Montpellier 2, Dynam Phases Condensees Grp, UMR CNRS 5581, F-34095 Montpellier 5, France

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[3] Univ Penn, Dept Met & Mat Engn, Philadelphia, PA 19104 USA

[4] Univ Penn, Res Struct Matter Lab, Philadelphia, PA 19104 USA

[5] Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[6] Ctr Etud Saclay, Leon Brillouin Lab, CEA CNRS, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.85.5222

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Vibrational density of states of single-walt carbon nanotubes (SWNT) was obtained from inelastic neutron scattering data from 0 to 225 meV. The spectrum is similar to that of graphite above 40 meV, white intratube features are clearly observed at 22 and 36 meV. An unusual energy dependence below 10 meV 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.

引用

页码：5222 / 5225

页数：4

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