Exact study of lattice dynamics of single-walled carbon nanotubes
- 30 January 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 67 (4) , 045413-454136
- https://doi.org/10.1103/physrevb.67.045413
Abstract
Based on the model of lattice dynamics with force-constant matrix, we have calculated phonon spectrum and then specific heats of single-walled carbon nanotubes. The results show that with a more complicated phonon spectrum, a single-walled carbon nanotube has analogous good thermal conductivity to the two-dimensional graphite. However, the ratio of thermal conductivity to phonon relaxation time is inversely proportional to the diameter of either zigzag or armchair carbon nanotubes.Keywords
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