Relaxation dynamics in supercooled liquids studied by time-resolved spectroscopy

We have carried out impulsive stimulated thermal scattering (ISTS) on supercooled liquids to investigate q-dependence of relaxation dynamics in the liquid-glass transition. It is found that relaxation time R of density fluctuation and thermal relaxation time H become their maximum values at a temper...

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Bibliographic Details
Main Authors: Kobayashi, Mika, Tsujimi, Yuhji, Yagi, Toshirou
Format: Conference Proceeding
Language:English
Online Access:Get full text
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Summary:We have carried out impulsive stimulated thermal scattering (ISTS) on supercooled liquids to investigate q-dependence of relaxation dynamics in the liquid-glass transition. It is found that relaxation time R of density fluctuation and thermal relaxation time H become their maximum values at a temperature much higher than glass transition temperature Tg, and show strong q-dependence. These results indicate the crossover between some scales.
ISSN:0094-243X
DOI:10.1063/1.1764255