Temperature Dependence of the SeH Vibrational Dephasing Time in Chalcogenide Glasses

  • R. J. Till
  • A. J. Sievers
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 112)

Abstract

The concept of relating the properties of glass-like solids to their microscopic topology rather than to their chemical nature was originally introduced by Phillips [1] and later refined by Thorpe[2]. The key parameter in this model is the mean coordination number <r>, i. e. the average number of covalent bonds per atom. Constraint counting arguments lead to topological thresholds at <r> = 2.4 and <r> = 2.67. Both can be observed in different glasses as extrema or kinks in physical properties as a function of the mean coordination number, such as the glass forming temperature, the mean atomic volume or the dielectric constant[3–5].

Keywords

Burning 

References

  1. 1.
    J. C. Phillips, J. Non-Cryst. Solids 34, 153 (1979); 43, 37 (1981)Google Scholar
  2. 2.
    M. F. Thorpe, J. Non-Cryst. Solids 57, 355 (1983)ADSCrossRefGoogle Scholar
  3. 3.
    S. Mahadevan, A. Giridhar, J. Non-Cryst. Solids 143, 52 (1991)ADSCrossRefGoogle Scholar
  4. 4.
    A. Feltz, H. Aust, A. Blayer, J. Non-Cryst. Solids 55, 179 (1983)ADSCrossRefGoogle Scholar
  5. 5.
    M. Tatsumisago, B. L. Halfpap, J. L. Green, S. M. Lindsay, C. A. Angell, Phys. Rev. Lett. 64, 1549 (1990)ADSCrossRefGoogle Scholar
  6. 6.
    S. P. Love, A. J. Sievers, B. L. Halfpap, S. M. Lindsay, Phys. Rev. Lett. 65, 1792 (1990)ADSCrossRefGoogle Scholar
  7. 7.
    S. P. Love and A. J. Sievers, J. of Lumin. 45, 58 (1990).ADSCrossRefGoogle Scholar
  8. 8.
    R. M. Macfarlaine, R. M. Shelby, J. of Lumin. 36, 179 (1987)ADSCrossRefGoogle Scholar
  9. 9.
    R. Silbey, K. Kassner, J. of Lumin. 36, 283 (1987)ADSCrossRefGoogle Scholar
  10. 10.
    S. Völker, J. of Lumin. 36, 251 (1987)CrossRefGoogle Scholar
  11. 11.
    S. U. Nemilov, Soy. J. Phys. Chem. 37, 1026 (1964)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • R. J. Till
    • 1
  • A. J. Sievers
    • 1
  1. 1.L.A.S.S.P. and M.S.C.Cornell UniversityIthacaUSA

Personalised recommendations