Universal nonexponential relaxation: Complex dynamics in simple liquids

The Journal of Chemical Physics
David A Turton, Klaas Wynne

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.

References

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Citations

Apr 10, 2010·Physical Chemistry Chemical Physics : PCCP·David A TurtonKlaas Wynne
May 10, 2012·Physical Chemistry Chemical Physics : PCCP·David A TurtonKlaas Wynne
Feb 11, 2012·The Journal of Chemical Physics·Peter A Beckmann, Evan Schneider
Sep 28, 2013·The Journal of Chemical Physics·Mauro C C Ribeiro
Sep 4, 2012·The Journal of Chemical Physics·M V KondrinA A Volkov
Jan 10, 2013·Annual Review of Physical Chemistry·Arnulf RosspeintnerEric Vauthey
Oct 24, 2012·The Journal of Physical Chemistry. B·Francesca Palombo, Stephen R Meech
Jun 15, 2017·The Journal of Physical Chemistry Letters·Gopakumar RamakrishnanKlaas Wynne
Jun 30, 2018·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Peter A BeckmannSteven T Szewczyk
Nov 16, 2016·Physical Biology·Neda Dadashvand, Christina M Othon
Nov 6, 2018·The Journal of Chemical Physics·Keewook Paeng, Laura J Kaufman
Aug 29, 2020·Physical Review Letters·Kyung Hwan KimFivos Perakis
Sep 26, 2012·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·F Demmel, C Morkel
Jul 30, 2010·The Journal of Physical Chemistry. B·Kamila MazurStephen R Meech
Aug 27, 2010·The Journal of Physical Chemistry. B·Katherine ManfredJohn T Fourkas
May 18, 2017·Journal of the American Chemical Society·Judith ReichenbachKlaas Wynne

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Methods Mentioned

BETA
x-ray scattering
x-ray Brillouin scattering

Software Mentioned

MCT

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