Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids

We study dynamic heterogeneities in a model glass former whose overlap with a reference configuration is constrained to a fixed value. We find that the system phase separates into regions of small and large overlap, indicating that a nonzero surface tension plays an important role in the formation o...

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Detalles Bibliográficos
Autores principales:	Cammarota, Chiara, Cavagna, Andrea, Giardina, Irene, Gradenigo, Giacomo, Grigera, Tomás Sebastián, Parisi, Giorgio, Verrocchio, Paolo
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2010
Materias:	Ciencias Exactas Física dynamic heterogeneities model glass former overlap thermodynamic potential Maxwell construction spinodal decomposition
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/126356
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-126356
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Exactas Física dynamic heterogeneities model glass former overlap thermodynamic potential Maxwell construction spinodal decomposition
spellingShingle	Ciencias Exactas Física dynamic heterogeneities model glass former overlap thermodynamic potential Maxwell construction spinodal decomposition Cammarota, Chiara Cavagna, Andrea Giardina, Irene Gradenigo, Giacomo Grigera, Tomás Sebastián Parisi, Giorgio Verrocchio, Paolo Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
topic_facet	Ciencias Exactas Física dynamic heterogeneities model glass former overlap thermodynamic potential Maxwell construction spinodal decomposition
description	We study dynamic heterogeneities in a model glass former whose overlap with a reference configuration is constrained to a fixed value. We find that the system phase separates into regions of small and large overlap, indicating that a nonzero surface tension plays an important role in the formation of dynamical heterogeneities. We calculate an appropriate thermodynamic potential and find evidence of a Maxwell construction consistent with a spinodal decomposition of two phases. Our results suggest that even in standard, unconstrained systems dynamic heterogeneities are the expression of an ephemeral phase-separating regime ruled by a finite surface tension.
format	Articulo Articulo
author	Cammarota, Chiara Cavagna, Andrea Giardina, Irene Gradenigo, Giacomo Grigera, Tomás Sebastián Parisi, Giorgio Verrocchio, Paolo
author_facet	Cammarota, Chiara Cavagna, Andrea Giardina, Irene Gradenigo, Giacomo Grigera, Tomás Sebastián Parisi, Giorgio Verrocchio, Paolo
author_sort	Cammarota, Chiara
title	Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
title_short	Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
title_full	Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
title_fullStr	Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
title_full_unstemmed	Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
title_sort	phase-separation perspective on dynamic heterogeneities in glass-forming liquids
publishDate	2010
url	http://sedici.unlp.edu.ar/handle/10915/126356
work_keys_str_mv	AT cammarotachiara phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids AT cavagnaandrea phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids AT giardinairene phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids AT gradenigogiacomo phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids AT grigeratomassebastian phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids AT parisigiorgio phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids AT verrocchiopaolo phaseseparationperspectiveondynamicheterogeneitiesinglassformingliquids
bdutipo_str	Repositorios
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Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids

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