Thermal Transport Measurements of Individual Multiwalled Nanotubes
Abstract
The thermal conductivity and thermoelectric power of a single carbon nanotube were measured using a microfabricated suspended device. The observed thermal conductivity is more than 3000 W/K m at room temperature, which is 2 orders of magnitude higher than the estimation from previous experiments that used macroscopic mat samples. The temperature dependence of the thermal conductivity of nanotubes exhibits a peak at 320 K due to the onset of umklapp phonon scattering. The measured thermoelectric power shows linear temperature dependence with a value of 80 μV/K at room temperature.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2001
- DOI:
- 10.1103/PhysRevLett.87.215502
- arXiv:
- arXiv:cond-mat/0106578
- Bibcode:
- 2001PhRvL..87u5502K
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 4 pages, figures included