• Lattice dynamics of calcium fluoride by an angular force model

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      https://www.ias.ac.in/article/fulltext/pram/008/05/0408-0416

    • Keywords

       

      CGW angular forces; fluorite lattice; phonon dispersion; coulomb coupling coefficients; elastic constants

    • Abstract

       

      The lattice dynamics of CaF2 has been studied on the basis of a noncentral model using CGW type angular forces. The experimental data agree with the data obtained for the dispersion curves. The model has also been used to calculate lattice specific heat and Debye-Waller factors.

    • Author Affiliations

       

      K K Chopra1 B Dayal1 2

      1. Department of Physics, S.D. College, Muzaffarnagar - 251001
      2. Department of Physics, Institute of Advanced Studies, Meerut University, Meerut - 250001
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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