Abstract
Molecular dynamics simulations of heat transfer between nanotubes in a bundle of 7 SWNTs were performed. Initially, whole system was kept at 300 K for 100 ps. Then, the temperature of only the center SWNT was suddenly heated up to 1000 K and temperature control was stopped. By monitoring the temperature of each SWNT, heat transfer from the center nanotube to surrounding nanotubes were calculated. We found that this heat transfer rate was well characterized by the thermal boundary resistance (TBR) between nanotubes. TBR value was estimated to be 1.0×(10)^<-7> m^2K/W. We have defined a length scale that can express the amount of TBR in comparison to the axial heat conduction. The estimated length was about 1μm.
