Thermal transport measurements of individual multiwalled nanotubes

Details Thermal transport measurements of individual multiwalled nanotubes Thermal transport measurements of individual multiwalled nanotubes

2001-06-27

arxiv.org/abs/cond-mat/0106578v1

Phys. Rev. Lett. 87, 215502 (2001)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, figures included

Scientific paper

10.1103/PhysRevLett.87.215502

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 two 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 $\mu$V/K at room temperature.

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