Relaxational and vibrational contributions to the dynamics of the glass transition

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

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16 Scopus citations

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.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalPhysica A: Statistical Mechanics and its Applications
Volume201
Issue number1-3
DOIs
StatePublished - Dec 1 1993
Externally publishedYes

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