Control of NEMS Based on Carbon Nanotube

摘要

A new method is proposed for controlling the motion of nanoelectromechanical systems (NEMS) based on carbon nanotubes. In this method chemical adsorption of atoms and molecules at open ends of a single-walled carbon nanotube leads to the appearance of an electric dipole moment. In this case the nanotube can be actuated by a non-uniform electric field. Possibility of the proposed method is shown on the example of the gigahertz oscillator based on a carbon nanotube. Molecular dynamics simulations of the oscillator operation are performed. The simulations reveal for this NEMS considerable thermodynamic fluctuations. The influence of thermodynamic fluctuations on the possibility of controlling the motion of NEMS is investigated.