The coupled oscillation of multi-walled CNT oscillators consisting of (5n,5n) CNTs was investigated by molecular
dynamics simulations. The oscillation feature of the CNT oscillators can not be described by a continuum theory. All
walls of the multi-walled CNT are oscillated due to the interwall coupling. The frequencies of the multi-walled CNT oscillators are higher than those of the double-walled CNT oscillators. In spire of the different core CNT, the frequency peaks due to the interwall coupling are similar to each other as the number of walls increases. This reason is that the interwall coupling effects increase as the number of walls increases.
We investigated a linear carbon nanotube motor serving as the key building block for nanoscale motion control by
using molecular dynamics simulations. This linear nanomotor, is based on the electrostatically telescoping multi-walled
carbon-nanotube with ultralow intershell sliding friction, is controlled by the gate potential with the capacitance feedback
sensing. The resonant harmonic peaks are induced by the interference between the driving frequencies and its self-frequency.
The temperature is very important factor to operate this nanomotor.