• A three dimensional ferromagnetic Ising ‘fluid’ model

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      https://www.ias.ac.in/article/fulltext/pram/001/02/0098-0103

    • Keywords

       

      Ising fluid model; order-disorder transition; ferromagnetism

    • Abstract

       

      The three dimensional ferromagnetic spin-half Ising model with an arbitrary external magnetic field is considered in the spatial continuum limit and under a certain tempering condition to be imposed on the pair-wise spin-spin interaction. An expression for the partition function has been obtained for a tempered RKKY type interaction. The solution predicts the classical mean-field behaviour above a critical temperature below which the spontaneous magnetization jumps discontinuously from zero to the saturation value.

    • Author Affiliations

       

      N Kumar1 K B Athreya2

      1. Department of Physics, Indian Institute of Science, Bangalore - 560012
      2. Department of Applied Mathematics, Indian Institute of Science, Bangalore - 560012
    • Dates

       
  • Pramana – Journal of Physics | News

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