• Site symmetry and internal strains

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      https://www.ias.ac.in/article/fulltext/pram/006/04/0203-0208

    • Keywords

       

      Site symmetry; internal strains; Lagrangian strains; inversion symmetry

    • Abstract

       

      The determination of the internal strains on the coupling parameter approach becomes very involved particularly when the number of atoms per unit cell is very large. It is shown in this paper that a knowledge of the site symmetry of the atoms helps one in determining the number of non-vanishing internal strain coefficients easily. The internal strain coefficients of two symmetry connected atoms can also be related. Examples are shown to illustrate these ideas.

    • Author Affiliations

       

      R Srinivasan1 G Lakshmi1

      1. Department of Physics, Indian Institute of Technology, Madras - 600036
    • Dates

       
  • Pramana – Journal of Physics | News

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