Relaxational and vibrational contributions to the dynamics of the glass transition

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

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

Relaxational and vibrational contributions to the dynamics of the glass transition

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

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	67-71
Number of pages	5
Journal	Physica A: Statistical Mechanics and its Applications
Volume	201
Issue number	1-3
DOIs	https://doi.org/10.1016/0378-4371(93)90400-X
State	Published - Dec 1 1993
Externally published	Yes

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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.",

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AU - Sokolov, A. P.

AU - Rössler, E.

AU - Kisliuk, A.

AU - Soltwisch, M.

AU - Quitmann, D.

PY - 1993/12/1

Y1 - 1993/12/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/40749158301

U2 - 10.1016/0378-4371(93)90400-X

DO - 10.1016/0378-4371(93)90400-X

M3 - Article

AN - SCOPUS:40749158301

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VL - 201

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EP - 71

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

IS - 1-3

ER -

Relaxational and vibrational contributions to the dynamics of the glass transition

Abstract

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