Wide-frequency dielectric susceptibility measurements in glycerol

Data are presented on the dielectric relaxation in supercooled liquid glycerol. These data span over 14 decades in frequency from 10 −4 Hz to 2×10 10 Hz. It is found that the peak in the imaginary part of the dielectric susceptibility has a temperature dependence that can be fit with a Vogel-Fulcher...

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Bibliographic Details
Published in:Journal of non-crystalline solids 1992, Vol.141 (1-3), p.61-65
Main Authors: Menon, N., O'Brien, Kevin P., Dixon, Paul K., Wu, Lei, Nagel, Sidney R., Williams, Bruce D., Carini, John. P.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Physics
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Summary:Data are presented on the dielectric relaxation in supercooled liquid glycerol. These data span over 14 decades in frequency from 10 −4 Hz to 2×10 10 Hz. It is found that the peak in the imaginary part of the dielectric susceptibility has a temperature dependence that can be fit with a Vogel-Fulcher form: v = v 0 exp[− A/( T − T 0)]. The shape of the response function in the high frequency tail cannot be fit with a stretched-exponential form. However the data can be scaled onto a single master curve which has previously been shown to fit a number of other glass-forming liquids.
ISSN:0022-3093
1873-4812
DOI:10.1016/S0022-3093(05)80519-8