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Paper   IPM / Nano-Sciences / 8242
School of Nano Science
  Title:   Monte Carlo simulation of size-effects on thermal conductivity in a 2-dimensional Ising system
1.  Mehdi Neek Amal
2.  Ruhollah Moussavi
3.  Hamid Reza Sepanji
  Status:   Published
  Journal: Physica A
  No.:  2
  Vol.:  371
  Year:  2008
  Pages:   424
  Publisher(s):   Elsevier B.V.
  Supported by:  IPM
A model based on microcanonical Monte Carlo method is used to study the application of the temperature gradient along a two-dimensional (2D) Ising system. We estimate the system size efects on thermal conductivity, K, for a nano-scale Ising layer with variable size. It is shown that, K scales with size as K = cL alpha where alpha varies with temperature. Both the Metropolis and Cruetz algorithms have been used to establish the temperature gradient. Further results show that the average demon energy in the presence of an external magnetic field is zero for low temperatures

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