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Publisher's URL: http://dx.doi.org/10.1063/1.3265862
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.
|Glasgow Author(s):||Wynne, Prof Klaas|
|Authors:||Turton, D.A., and Wynne, K.|
|College/School:||College of Science and Engineering > School of Chemistry|
|Journal Name:||Journal of Chemical Physics|
|Published Online:||30 November 2009|