Soviet Physics Journal

, Volume 14, Issue 11, pp 1534–1540 | Cite as

Dispersion laws for crystals with a simple tetragonal lattice. I

  • N. V. Kudryavtseva
  • L. V. Tikhonova
Article
  • 17 Downloads

Abstract

Parametric expansions of dispersion laws are obtained by the method of charged corepresen-tations in the quadratic approximation in components of the wave number vector. The possible multiple degeneracies and zero-slope energy surfaces in the neighborhood symmetry points of the crystal Brillouin zone are obtained for the space groups D 4h 1 -D 4h 16 .

Keywords

Energy Surface Brillouin Zone Symmetry Point Quadratic Approximation Parametric Expansion 

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Copyright information

© Consultants Bureau 1974

Authors and Affiliations

  • N. V. Kudryavtseva
    • 1
  • L. V. Tikhonova
    • 1
  1. 1.V. D. Kuznetsov Siberian Physicotechnical InstituteTomsk State UniversityUSSR

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