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Title: Thermal conductivity of an ultrathin carbon nanotube with an X-shaped junction
Authors: Meng, F. Y.
Ogata, Shigenobu
Xu, D. S.
Shibutani, Y.
Shi, San-qiang
Subjects: Carbon nanotubes
Molecular dynamics method
Thermal conductivity
Issue Date: 15-May-2007
Publisher: American Physical Society
Source: Physical review B, condensed matter and materials physics, 15 May 2007, v. 75, no. 20, 205403, p. 1-6.
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.
Rights: Physical Review B © 2007 The American Physical Society. The Journal's web site is located at
Type: Journal/Magazine Article
DOI: 10.1103/PhysRevB.75.205403
ISSN: 1098-0121 (print)
1550-235X (online)
Appears in Collections:ME Journal/Magazine Articles

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