Universal nonexponential relaxation : complex dynamics in simple liquids

Turton, David A. and Wynne, Klaas (2009) Universal nonexponential relaxation : complex dynamics in simple liquids. Journal of Chemical Physics, 131 (20). p. 201101. ISSN 0021-9606 (https://doi.org/10.1063/1.3265862)

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Abstract

The dynamics of the noble-gas liquids underlies that of all liquids making them an important prototypical model system. Using optical Kerr-effect spectroscopy we show that for argon, krypton, and xenon, both the librational and diffusional contributions to the spectrum are surprisingly complex. The diffusional relaxation appears as a stretched-exponential, such as widely found in studies of structured (e.g., glass-forming) liquids and as predicted by mode-coupling theory. We show that this behavior is remarkably similar to that measured in water and suggest that it is a fundamental or universal property.

ORCID iDs

Turton, David A. and Wynne, Klaas ORCID logoORCID: https://orcid.org/0000-0002-5305-5940;
  • Item type:Article
    ID code:27317
    Dates:
    Date
    Event
    30 November 2009
    Published
    31 October 2009
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user:Users 1261 not found.
    Date deposited:01 Sep 2010 10:36
    Last modified:11 Nov 2024 09:33
    URI:https://strathprints.strath.ac.uk/id/eprint/27317
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