Thermal conductivity of an ultrathin carbon nanotube with an X-shaped junction

F. Y. Meng, Shigenobu Ogata, D. S. Xu, Y. Shibutani, San-Qiang Shi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)

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 languageEnglish
Article number205403
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number20
DOIs
Publication statusPublished - 1 May 2007

ASJC Scopus subject areas

  • Condensed Matter Physics

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