• Normal vibrations of crystal lattices: application of group theory

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/seca/018/05/0283-0297

    • Keywords

       

      Normal Mode; Irreducible Representation; Point Group; Normal Vibration; Symmetry Operation

    • Abstract

       

      A group theoretical method to deal with the harmonic vibrations of a general crystalline lattice is indicated in this paper. Sir C. V. Raman’s theory of lattice vibrations3 is the basis of the work and it is indicated how the normal modes, frequencies, their degeneracies, etc., can be rigorously derived. Applications of this work to specific problems are given in another paper in this symposium.

    • Author Affiliations

       

      E V Chelam1

      1. Department of Physics, Indian Insitute of Science, Bangalore
    • Dates

       
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