P. Kim, Shi, L., Majumdar, A., and McEuen, P. L., “Thermal Transport Measurements of Individual Multiwalled Carbon Nanotubes,” Phy. Rev. Lett., vol. 87, pp. 215502:1-4, 2001.
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 80μV/K at room temperature.