• Lattice sum of electric field gradients in tetragonal crystals

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      https://www.ias.ac.in/article/fulltext/pram/021/06/0357-0367

    • Keywords

       

      Electric field gradient; lattice sum; convergence; tetragonal crystals; Euler-Maclaurin formula

    • Abstract

       

      A new method to calculate the lattice contribution to electric field gradients at a nuclear site in tetragonal crystals is developed. The crystal is regarded as an assembly of positive ions at lattice points embedded in a uniform background of negative charge (point charge model). The method uses Euler-Maclaurin formula and makes the plane-wise summation in the direct crystal space unlike most of the previous methods utilising Fourier transform to reciprocal space. The numerical values obtained using the above approach agree well with previous results.

    • Author Affiliations

       

      D P Verma1 2 A Yadav1 H C Verma1

      1. Department of Physics, Science College, Patna - 800 005, India
      2. Department of Mathematics, Science College, Patna - 800 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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