Multiphonon Absorption in the Chalcogenide Glasses As2S3 and GeS2

  • D. Treacy
  • P. C. Taylor
Part of the Optical Physics and Engineering book series (OPEG)


Semiconducting chalcogenide glasses generally exhibit a series of well defined multiphonon absorption peaks in the frequency region between about 400 and 4000 cm−1. Measurements of the frequency and temperature dependences of the one-phonon and multiphonon spectra in crystalline and glassy As2S3 and glassy GeS2 are compared with the predictions of a model calculation in which the anharmonic effects are approximated by a Morse potential. These calculations indicate that anharmonic contributions caused by nonlinearities in the dipole moment are significant in some chalcogenide glasses.


Chalcogenide Glass Morse Potential Alkali Halide Impurity Mode Band Edge Absorption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    U. Strom, J. R. Hendrickson, R. J. Wagner, and P. C. Taylor, Solid State Commun. 15, 1871 (1974).ADSCrossRefGoogle Scholar
  2. 2.
    P. C. Taylor, S. G. Bishop, and D. L. Mitchell, Solid State Commun. 8, 1783 (1970).ADSCrossRefGoogle Scholar
  3. 3.
    D. L., Wood and T. Taut, Phys: Rev, B5, 3144 (1972)ADSCrossRefGoogle Scholar
  4. 4.
    J. R. Hardy and B. S. Agrawal, Appl. Phys. Lett. 22, 236 (1973).ADSCrossRefGoogle Scholar
  5. 5.
    The width of the impurity mode near 500 cm−1 narrows up at 80K, but the total oscillator strength remains constant. The net effect of superimposing this behavior on a slowly varying two-phonon contribution, as given by the lower dashed curve of Figure 2, is to generate the curve given by the solid line of Figure 2.Google Scholar
  6. 6.
    This sample was kindly supplied by C. T. Moynihan.Google Scholar
  7. 7.
    R. E. Howard and C. T. Moynihan, private communication.Google Scholar
  8. 8.
    P. C. Taylor, S. G. Bishop, D. L. Mitchell, and D. Treacy, Proc. 5th Int. Conf. on Liquid and Amorphous Semicond. ( Taylor and Francis, London, 1974 ), p. 1267.Google Scholar
  9. 9.
    Crystalline As2S3 is a highly anisotropic compound whose local structural order consists of AsS3 pyramidal units linked together in a layered configuration. X-ray scattering results unambiguously confirm the existence of AsS3 pyramids in the glass but are unable to confirm or deny definitely the existence of layer segments in the glass. See the conflicting interpretations in: S. Tsuchihashi and Y. Kawamoto, J. NonCryst. Solids 5, 286 (1971)Google Scholar
  10. A. J. Apling, Electronic and Structural Properties of Amorphous Semiconductors (P. G. LeComber and J. Mort, eds. Academic Press, London, 1973 ), p. 243Google Scholar
  11. A. L. Renninger and B. L. Averbach, Phys. Rev. B4, 1507 (1973).Google Scholar
  12. 10.
    H. B. Rosenstock, Phys. Rev. B9, 1963 (1974)ADSCrossRefGoogle Scholar
  13. L. L. Boyer, J. A. Harrington, M. Hass, and H. B. Rosenstock, Phys. Rev. B, in press.Google Scholar
  14. 11.
    See for example L. Pauling, The Nature of the Chemical Bond (Cornell Univ. Press, 1960).Google Scholar

Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • D. Treacy
    • 1
  • P. C. Taylor
    • 2
  1. 1.U.S. Naval AcademyAnnapolisUSA
  2. 2.Naval Research LaboratoryUSA

Personalised recommendations