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- Title
Pressure-induced change in the relaxation dynamics of glycerol.
- Authors
Pronin, A.; Kondrin, M.; Lyapin, A.; Brazhkin, V.; Volkov, A.; Lunkenheimer, P.; Loidl, A.
- Abstract
Glycerol is one of the best studied and most widely used glass-forming liquids; however, its dynamic properties are still under discussion. The dielectric spectra of glycerol are studied in detail over wide ranges of temperatures and pressures up to 4.5 GPa. Starting from the pressures of 2-3 GPa, qualitative change in the dynamics of structural relaxation processes in glycerol has been revealed. It is accompanied by the appearance of secondary relaxation and a change in the asymptotic behavior of the pressure dependence of the fragility. The relation between the parameters for different relaxation mechanisms is analyzed.
- Subjects
RELAXATION phenomena; GLYCERIN; DIELECTRICS spectra; MOLECULAR dynamics; QUALITATIVE chemical analysis; TEMPERATURE effect; LIQUIDS
- Publication
JETP Letters, 2010, Vol 92, Issue 7, p479
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364010190100