Long Wavelength Optical Lattice Vibrations and Structural Phase Transition in Mixed a-In2s3-xSex Crystals

  • K. Kambas
  • J. Spyridelis


The FIR and Raman measurements of lattice vibrations in a-In2S3-xSex mixed crystals are reported. For 0 < x < 2.5 the crystals have a cubic defect spinel structure and one mode behavior is evident. For x > 2.5 the a-In2Se3 hexagonal phase appears and the crystals exhibit a mixed one- and two mode behavior. This abrupt change in the optical spectrum evidence a structural phase transition occurring for a concentration near x ~ 2.5.


Mode Behavior Structural Phase Transition Mixed Crystal Raman Active Mode Infrared Reflectivity Spectrum 
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  1. 1.
    C.J. Rooymans, J. Inorg. Nuclear Chem. 11, 78 (1959).CrossRefGoogle Scholar
  2. 2.
    R. Diehl, R. Nitsche, J. Cryst. Gr. 28, 306 (1975).ADSCrossRefGoogle Scholar
  3. 3.
    S.A. Semiletov, Sov. Phys. Cryst. 6, 158 (1960).Google Scholar
  4. 4.
    B. Deangelis, V. Keramidas, N. White, S. Sol. St. Chem. 3, 358 (1971).ADSCrossRefGoogle Scholar
  5. 5.
    V.A. Brabers, Phys. St. Sol. (a), 12, 629 (1972).ADSCrossRefGoogle Scholar
  6. 6.
    C. Haas, J. Phys. Chem. Solids, 26, 1225 (1965).ADSCrossRefGoogle Scholar
  7. 7.
    W.I. White, B.A. Deangelis, Spectrochim. Acta, 23A, 985 (1967).ADSGoogle Scholar
  8. 8.
    I.F. Chang, S.S. Mitra, Phys. Rev. 172, 924 (1968).ADSCrossRefGoogle Scholar
  9. 9.
    A.S. Barker, J.A. Ditzenbarger, H.J. Guggenheim, Phys. Rev. 175, 1180 (1968).ADSCrossRefGoogle Scholar
  10. 10.
    C.H. Perry, N.E. Torenberg, Phys. Rev. 183, 95 (1969).ADSCrossRefGoogle Scholar
  11. 10.a
    U.M. Hayek, O. Brafman, R. Lieth, Phys. Rev., B8, 2772 (1973).ADSGoogle Scholar
  12. 12.
    N.A. Bakhysov, N.M. Gasanly, B. Yavadof, V. Tagiror, S. Efendiev, Phys. St. Sol. (b) 91, K1 (1979).Google Scholar
  13. 13.
    M.K. Teng, M. Massot and M. Balkanski, Phys. Rev. 17, 3695 (1978).ADSCrossRefGoogle Scholar
  14. 14.
    K. Wakamura, T. Arai, S. Onari, K. Kudo and T. Takahashi, J. Phys. Soc. Japan 35, 1430 (1973).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • K. Kambas
    • 1
  • J. Spyridelis
    • 1
  1. 1.First Laboratory of PhysicsUniversity of ThessalonikiGreece

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