Volume 82, Number 6, June 2008
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||03 June 2008|
Discrete breathers in carbon nanotubes
Semenov Institute of Chemical Physics, Russian Academy of Sciences - Moscow 119991, Russia
2 Nonlinear Physics Center, Research School of Physical Sciences and Engineering, Australian National University Canberra, ACT 0200, Australia
Corresponding author: email@example.com
Accepted: 29 April 2008
We study large-amplitude oscillations of carbon nanotubes with chiralities and and predict the existence of spatially localized nonlinear modes in the form of discrete breathers. In nanotubes with the index we find three types of discrete breathers associate with longitudinal, radial, and torsion anharmonic vibrations, however only the twisting breathers are found to be nonradiating nonlinear modes which survive in a curved geometry described by a three-dimensional microscopic model and remain long-lived modes even in the presence of thermal fluctuations.
PACS: 63.20.Pw – Localized modes / 63.20.Ry – Anharmonic lattice modes / 63.22.Gh – Nanotubes and nanowires
© EPLA, 2008
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