Thermal transport measurements of individual multiwalled nanotubes - art. no. 215502

The thermal conductivity and thermoelectric power of a single carbon nanotu be were measured using a microfabricated suspended device. The observed the rmal conductivity is more than 3000 W/K m at room temperature, which is 2 o rders of magnitude higher than the estimation from previous experiments tha t used macroscopic mat samples. The temperature dependence of the thermal c onductivity of nanotubes exhibits a peak at 320 K due to the onset of umkla pp phonon scattering. The measured thermoelectric power shows linear temper ature dependence with a value of 80 muV/K at room temperature.