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Paper   IPM / Nano-Sciences / 8231
School of Nano Science
  Title:   Molecular Dynamics Simulation of the Thermal Conductivity of FCC Metallic Nano-Crystals
  Author(s): 
1.  Mehdi Neek Amal
2.  Hashem Rafii Tabar
  Status:   Published
  Journal: Journal of Computational and Theoretical Nanoscience
  No.:  3
  Vol.:  2
  Year:  2005
  Pages:   1-5
  Supported by:  IPM
  Abstract:
Equilibrium molecular dynamics (MD) simulation, based on a many-body interatomic potential, is used to compute, for the first time, the thermal conductivity of a set of three-dimensional fcc metallic nano-crystals, as a function of temperature. The Green-Kubo formalism in statistical mechanics, according to which the thermal conductivity is expressed in terms of the time autocorrelation function of the heat current operator, forms the theoretical framework. The energetics of the metallic atoms is modelled via the Sutton-Chen many-body interatomic potential. To test the approach, the thermal conductivity of solid argon is also computed on the basis of Lennard-Jones potential. Reasonable agreement is achieved with the experimental data in both cases.

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