https://doi.org/10.1140/epjb/e2003-00238-8
Symmetry, phonons and rigid-layers modes in commensurate double wall carbon nanotubes
Faculty of Physics, University of Belgrade, POB 368, 11001
Belgrade, Serbia and Montenegro
Corresponding author: a edib@ff.bg.ac.yu
Received:
2
May
2003
Revised:
19
June
2003
Published online:
9
September
2003
For translationally periodic double-wall carbon nanotubes stable configurations and full symmetry groups are determined. Using this, the phonon dispersions and eigenvectors are calculated and assigned by the complete set of conserved quantum numbers. In particular, the modes corresponding to the relative coaxial motions of the rigid layers are studied in the context of low inter-wall interaction.
PACS: 63.22.+m – Phonons or vibrational states in low-dimensional structures and nanoscale materials / 61.46.+w – Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals / 78.30.Na – Fullerenes and related materials
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
