Nano Science and Technology Institute
Nanotech 2012 Vol. 2
Nanotech 2012 Vol. 2
Nanotechnology 2012: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational (Volume 2)
Chapter 9: Modeling & Simulation at the Nanoscale

Temperature-Controlled Molecular Dynamics Study on Velocity-Dependent Threshold Behavior of Nano-Friction

Authors:K. Hayashi, T. Mori, R. Taniguchi, K. Nakamura
Affilation:Kanazawa Institute of Technology, JP
Pages:669 - 672
Keywords:nano-friction, NEMS, energy dissipation mechanism, complex system
Abstract:Laws of dynamic nano-friction (i.e., continuous wearless friction) were searched for under steady spatial distributions of the local quasi-temperature, by molecular dynamics (MD) simulations. The temperature control of the non-conservative model was carried out by extending the isothermal MD method using the Nosé-Poincaré thermostat. The results suggested that the threshold phenomenon characterizes sliding-velocity dependence of the nano-frictional force between crystal lattices constituting a nano-electromechanical system (NEMS). This phenomenon was turned out to be a universal feature, whether heat transfer to the environment exists or not.
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