High-frequency asymptotics of dielectric permittivity in supercooled liquids: Experimental data and conclusions of mode-coupling theory

The symptotic behavior of the correlation function predicted by Götze’s mode-coupling theory agrees with experimentally observed relaxation processes and in most cases can be described by the phenomenological Cole-Davidson relationship. It is shown that the high-frequency behavior of the relaxation...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2014-10, Vol.119 (4), p.707-713
Main Author: Kondrin, M. V.
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Elementary Particles
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
Solids and Liquids
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Summary:The symptotic behavior of the correlation function predicted by Götze’s mode-coupling theory agrees with experimentally observed relaxation processes and in most cases can be described by the phenomenological Cole-Davidson relationship. It is shown that the high-frequency behavior of the relaxation function is determined to a significant extent by processes related to the boundary frequency of propagation of elastic processes in liquids. A model is proposed that allows the relaxation processes to be described by unified approach in both normal and supercooled liquids.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776114090155