Relaxational and vibrational contributions to the dynamics of the glass transition

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

Physica A: Statistical Mechanics and its Applications, 1993, vol. 201, issue 1, 67-71

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.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:201:y:1993:i:1:p:67-71

DOI: 10.1016/0378-4371(93)90400-X

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