DOI: 10.1063/1.2001629. Dynamical exchanges in facilitated models of supercooled liquids

Dynamical exchanges in facilitated models of supercooled liquids

10.1063/1.2001629

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

We investigate statistics of dynamical exchange events in coarse-grained models of supercooled liquids in spatial dimensions d=1, 2, and 3. The models, based upon the concept of dynamical facilitation, capture generic features of statistics of exchange times and persistence times. Here, distributions for both times are related and calculated for cases of strong and fragile glass formers over a range of temperatures. Exchange-time distributions are shown to be particularly sensitive to the model parameters and dimensions, and exhibit more structured and richer behavior than persistence-time distributions. Mean exchange times are shown to be Arrhenius, regardless of models and spatial dimensions. Specifically, ⟨tx⟩∼c−2, with c being the excitation concentration. Different dynamical exchange processes are identified and characterized from the underlying trajectories. We discuss experimental possibilities to test some of our theoretical findings.

Bibliography

Jung, Y., Garrahan, J. P., & Chandler, D. (2005). Dynamical exchanges in facilitated models of supercooled liquids. The Journal of Chemical Physics, 123(8).

Authors 3

YounJoon Jung (first)
Juan P. Garrahan (additional)
David Chandler (additional)

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Dates

Type	When
Created	19 years, 11 months ago (Aug. 30, 2005, 6:03 p.m.)
Deposited	2 years ago (Aug. 1, 2023, 3:30 a.m.)
Indexed	3 weeks, 1 day ago (July 30, 2025, 6:45 a.m.)
Issued	19 years, 11 months ago (Aug. 22, 2005)
Published	19 years, 11 months ago (Aug. 22, 2005)
Published Online	19 years, 11 months ago (Sept. 1, 2005)
Published Print	19 years, 11 months ago (Aug. 22, 2005)

Funders 0

None

BibTeX

@article{Jung_2005, title={Dynamical exchanges in facilitated models of supercooled liquids}, volume={123}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2001629}, DOI={10.1063/1.2001629}, number={8}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Jung, YounJoon and Garrahan, Juan P. and Chandler, David}, year={2005}, month=aug }

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