Analysis of array nanoelectromechanical beams driven by an electrical line of Josephson junctions

Abstract

An array of nanoelectromechanical beams driven by an electrical line of Josephson junctions equivalent models is studied. It is found that a single electromechanical system displays oscillations under a critical value of the DC bias current. In the case of an array of electromechanical system constituted of a series of coupled discrete Josephson junction with a beam place at each node, the numerical simulation shows that as the electric signal flows in the discrete array, each beam executes a pulse-like motion coming at each rest state as the electrical signal passes the node. When the bias current increases, the amplitude and period of the pulse-like shapes increase. One also notes the increase of the amplitude of the pulse-like shape when the magnetic field increases. The electromechanical system analyzed can be seen as a model for periodic nano-actuation processes or as a model of legs in a millipede system.