• Density of states of the binary alloy in the coherent potential approximation

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      https://www.ias.ac.in/article/fulltext/pram/008/04/0328-0334

    • Keywords

       

      Binary alloy; disordered systems; coherent potential approximation

    • Abstract

       

      The density of states of an electron in a binary alloy in the tight binding model is calculated in the single site coherent potential approximation (CPA) as a function of the concentration and the site energy difference. The fluctuations in the site energies due to the random environment is taken into account approximately by giving width to the site energy probability distribution function, which is normally a sum of two delta functions with proper weight factor.

    • Author Affiliations

       

      A Prasanna Kumar1 2

      1. Physics Department, Bangalore University, Bangalore - 560001
      2. Guest Staff Member, Department of Theoretical Physics, University of New Castle, New Castle Upon Tyne, United Kingdom
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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