Effect of sp 3-hybridized defects on the oscillatory behavior of carbon nanotube oscillators

Using molecular dynamics simulations, we investigate the oscillatory behaviors of carbon nanotube oscillators containing sp 3-hybridized defects formed by hydrogen chemisorption. It is found that the presence of these defects significantly affects the kinetic and potential energies of the nanotube s...

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Bibliographic Details
Published in:Physics letters. A 2011-06, Vol.375 (24), p.2400-2404
Main Authors: Guo, Taiyu, Ding, Tony Weixi, Pei, Qing-Xiang, Zhang, Yong-Wei
Format: Article
Language:English
Subjects:
Carbon nanotube
Carbon nanotubes
Chemisorption
Defects
Molecular dynamics simulation
Nanocomposites
Nanomaterials
Nanostructure
Oscillator
Oscillators
Solid state physics
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Summary:Using molecular dynamics simulations, we investigate the oscillatory behaviors of carbon nanotube oscillators containing sp 3-hybridized defects formed by hydrogen chemisorption. It is found that the presence of these defects significantly affects the kinetic and potential energies of the nanotube systems, which in turn affects their oscillation periods and frequencies. We have also studied the oscillatory characteristics of the oscillators containing sp 3-hybridized Stone–Wales defects. Our results show that it is possible to control the motion of the inner nanotube by introducing sp 3-hybridized defects on the outer nanotube, which provides a potential way to tune the oscillatory behavior of nanotube oscillators. ► sp 3-hybridized defects increase energy dissipation. ► sp 3-hybridized defects arranged in a row have stronger effect than that in a ring. ► sp 3-hybridized defects reduces the effect of SW defects.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2011.05.003