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Correlation of Local Order with Particle Mobility in Supercooled Liquids Is Highly System Dependent

Hocky GM
•
Coslovich D
•
Ikeda A
•
Reichman DR
2014
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
We investigate the connection between local structure and dynamical heterogeneity in supercooled liquids. Through the study of four different models, we show that the correlation between a particle's mobility and the degree of local order in nearby regions is highly system dependent. Our results suggest that the correlation between local structure and dynamics is weak or absent in systems that conform well to the mean-field picture of glassy dynamics and strong in those that deviate from this paradigm. Finally, we investigate the role of order-agnostic point-to-set correlations and reveal that they provide similar information content to local structure measures, at least in the system where local order is most pronounced.
DOI
10.1103/PhysRevLett.113.157801
WOS
WOS:000342797100016
Archivio
http://hdl.handle.net/11368/2969173
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84907829219
Diritti
metadata only access
Soggetti
  • computer simulation

  • glass transition

Web of Science© citazioni
78
Data di acquisizione
Mar 25, 2024
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