• Interionic forces in AgF, AgCl and AgBr crystals

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      https://www.ias.ac.in/article/fulltext/pram/013/01/0031-0037

    • Keywords

       

      Alkali halides; overlap integrals; cohesive energy; bulk modulus

    • Abstract

       

      An interionic force model has been used in which the short range nearest neighbour and the next nearest neighbour repulsive interactions and the van der Waals’ interactions are balanced by the long range electrostatic forces. The nearest neighbour and the next nearest neighbour interactions are derived from the overlap integrals for outer shell electrons. The van der Waals’ interactions are estimated from the Slater-Kirkwood variational method. The cohesive energy, the bulk modulus and its pressure dependence for AgF, AgCl and AgBr crystals have been calculated and compared with experimental data.

    • Author Affiliations

       

      V C Jain1 2 Jai Shanker1

      1. Department of Physics, Agra College, Agra - 282 002
      2. Department of Physics, P. D. College, Shikohabad, U.P.
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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