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    • Interatomic forces, Grüneisen and Anderson-Grüneisen parameters of ionic crystals

      D D Shukla C L Gupta M N Sharma

      Solid State Physics Volume 14 Issue 4 April 1980 pp 263-269

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/014/04/0263-0269

    • Keywords

       

      Interatomic forces; Anderson-Grüneisen parameter; Grüneisen parameter; potential energy function

    • Abstract

       

      The general expression for the Anderson-Grüneisen parameterδ recently derived by Gupta and others, has been used to study the variation ofδ with the Grüneisen parameterγ employing the interaction approach. For this purpose four potential energy functions have been selected. It is found thatδ values evaluated by the modified Varshni-Shukla potential are better than other forms of overlap repulsive interaction. The variation ofδ withγ is also studied by plotting curves betweenδ andγ. The method of least-squares has been employed to yield the best fitted equation.

    • Author Affiliations

       

      D D Shukla1 C L Gupta1 2 M N Sharma1

      1. Physics Department, Lucknow University, Lucknow - 226 007, India
      2. K. S. Saket Post-Graduate College, Faizabad, India

    • Dates

       
      Published
      April 1980
      Manuscript received
      18 May 1979
      Manuscript revised
      10 January 1980

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