2010/04/27 by О В Ершова, O. V. Ershova, I. V. Lebedeva +14 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Carbon nanotube #Chemistry #Classical mechanics #Computer science #Condensed matter physics #Differential equation #Electric field #Equations of motion #Fokker–Planck equation #Force Microscopy Techniques and Applications #Materials science #Mechanical and Optical Resonators #Nanoelectromechanical systems #Nanotechnology #Nanotube #Noise (video) #Oscillation (cell signaling) #Physics #Quantum mechanics #Statistical physics #Thermal fluctuations #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.81.155453
published as Phys. Rev. B 81, 155453 (2010) · 40 pages, 12 figures
openalex publication_date 2010/04/27 · arxiv created 2010/04/29 · arxiv updated 2010/04/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Multiscale simulations of nanotube-based nanoelectromechanical systems (NEMS) controlled by a nonuniform electric field are performed by an example of a gigahertz oscillator. Using molecular dynamics simulations, we obtain the friction coefficients and characteristics of the thermal noise associated with the relative motion of the nanotube walls. These results are used in a phenomenological one-dimensional oscillator model. The analysis based both on this model and the Fokker-Planck equation for the oscillation energy distribution function shows how thermodynamic fluctuations restrict the possibility of controlling NEMS operation for systems of small sizes. The parameters of the force for which control of the oscillator operation is possible are determined.