Combining equilibrium and nonequilibrium molecular dynamics simulations with accurate carbon potentials, we determine the thermal conductivity λ of carbon nanotubes and its dependence on temperature. Our results suggest an unusually high value, λ~6600 W/m K, for an isolated \(10,10\) nanotube at room temperature, comparable to the thermal conductivity of a hypothetical isolated graphene monolayer or diamond. Our results suggest that these high values of λ are associated with the large phonon mean free paths in these systems; substantially lower values are predicted and observed for the basal plane of bulk graphite.
Physical Review Letters
- Pub Date:
- May 2000
- Condensed Matter - Materials Science;
- Condensed Matter - Mesoscale and Nanoscale Physics
- 4 pages 3 figures (5 postscript files), submitted for publication