COMPUTER SIMULATION OF THE SPECIFIC HEAT OF SINGLE- WALLED CARBON NANOTUBES

Computer simulation of the specific heat at constant volume (Cv) as a function of temperature is carried out and analysed in detail for the different types (semiconductor and metallic) of single-walled carbon nanotubes (SWCNT). In particular, at the low temperatures (up to 10 K) we have obtained the linear Cv(T) dependence for all types of the SWCNT. With temperature increase the behaviour of Cv(T) dependence becomes more complicated that can be connected with the existence of sub-band splitting effect in SWCNT. The theoretical results obtained are in a good agreement with available experimental data