Abstract
The thermal conductivity of the ultrathin carbon nanotube with and without an X-shaped junction was investigated using nonequilibrium molecular-dynamics simulations. The ultrathin carbon nanotube exhibits superhigh thermal conductivity. The thermal conductivity of the nanotube with junctions was 20-80% less than that of a straight nanotube depending on temperature. There is a jump in the temperature profile around the junction, contributing to a larger temperature gradient and reduction in the thermal conductivity. The thermal conductivity of armchair nanotube junctions is sensitive to the topological structures at the junction region.
Original language | English |
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Article number | 205403 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 75 |
Issue number | 20 |
DOIs | |
Publication status | Published - 1 May 2007 |
ASJC Scopus subject areas
- Condensed Matter Physics