Raman Scattering Studies of Anharmonicities in Potassium Halides

  • M. S. Haque
  • J. A. Taylor
  • J. E. Potts
  • J. B. PageJr.
  • C. T. Walker
Chapter

Abstract

In recent years, Raman scattering has become a widely accepted technique for investigating phonons in crystals. In this paper we demonstrate its use for studying anharmonicities in potassium halides. It has been shown1 that, for dilute concentrations of a particular dopant, namely T1+, the observed defect-induced first-order spectra of these crystals at low temperatures are best understood by assuming that essentially zero force-constant perturbations are induced by T1+. Since the even parity type (Alg, Eg, and T2g) Raman active modes involve no defect motion, the observed spectra reflects the projected densities of states of these host crystals.

Keywords

Raman Scattering Crystal Phonon Host Crystal Crystal Volume Pure Crystal 
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References

  1. 1.
    R.T. Harley, J.B. Page, Jr., and C.T. Walker, Phys. Rev. B3, 1365 (1971).ADSGoogle Scholar
  2. 2.
    J.A. Taylor, M.S. Hague, J.E. Potts, J.B. Page, Jr., and C.T. Walker, Solid State Commun., 16, 1179 (1975).ADSCrossRefGoogle Scholar
  3. 3.
    M.S. Haque, Phys. Rev. (in press).Google Scholar

Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • M. S. Haque
    • 1
  • J. A. Taylor
    • 2
  • J. E. Potts
    • 2
  • J. B. PageJr.
    • 2
  • C. T. Walker
    • 2
  1. 1.Fachbereich PhysikUniversität RegensburgRegensburgW. Germany
  2. 2.Physics DepartmentArizona State UniversityTempeUSA

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