Correlation of local order with particle mobility in supercooled liquids is highly system dependent

Glen Hocky, Daniele Coslovich, Atsushi Ikeda, David R. Reichman

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Article number157801
JournalPhysical Review Letters
Volume113
Issue number15
DOIs
StatePublished - Oct 7 2014

Fingerprint

liquids

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Correlation of local order with particle mobility in supercooled liquids is highly system dependent. / Hocky, Glen; Coslovich, Daniele; Ikeda, Atsushi; Reichman, David R.

In: Physical Review Letters, Vol. 113, No. 15, 157801, 07.10.2014.

Research output: Contribution to journalArticle

Hocky, Glen ; Coslovich, Daniele ; Ikeda, Atsushi ; Reichman, David R. / Correlation of local order with particle mobility in supercooled liquids is highly system dependent. In: Physical Review Letters. 2014 ; Vol. 113, No. 15.
@article{4f42299633c34fcf9711a214e18077eb,
title = "Correlation of local order with particle mobility in supercooled liquids is highly system dependent",
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.",
author = "Glen Hocky and Daniele Coslovich and Atsushi Ikeda and Reichman, {David R.}",
year = "2014",
month = "10",
day = "7",
doi = "10.1103/PhysRevLett.113.157801",
language = "English (US)",
volume = "113",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "15",

}

TY - JOUR

T1 - Correlation of local order with particle mobility in supercooled liquids is highly system dependent

AU - Hocky, Glen

AU - Coslovich, Daniele

AU - Ikeda, Atsushi

AU - Reichman, David R.

PY - 2014/10/7

Y1 - 2014/10/7

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84907829219&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84907829219&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.113.157801

DO - 10.1103/PhysRevLett.113.157801

M3 - Article

VL - 113

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 15

M1 - 157801

ER -