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Relaxational and vibrational contributions to the dynamics of the glass transition

Author

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  • Sokolov, A.P.
  • Rössler, E.
  • Kisliuk, A.
  • Soltwisch, M.
  • Quitmann, D.

Abstract

The low-frequency Raman spectra of a few glass forming liquids were analysed. It is shown that the main difference of the spectra for strong and fragile glass formers is the ratio of vibrational to relaxation contributions: the stronger the glass former, the higher is the vibrational contribution. It is shown that this difference correlates with the difference in the low-temperature anomalies of glasses. The spectra are compared with the mode coupling theory predictions. Qualitatively the predicted behavior is observed in all cases, however, some quantitative disagreement is found.

Suggested Citation

  • Sokolov, A.P. & Rössler, E. & Kisliuk, A. & Soltwisch, M. & Quitmann, D., 1993. "Relaxational and vibrational contributions to the dynamics of the glass transition," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 201(1), pages 67-71.
    • Handle: RePEc:eee:phsmap:v:201:y:1993:i:1:p:67-71
    DOI: 10.1016/0378-4371(93)90400-X
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