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

Autores
Cammarota, Chiara; Cavagna, Andrea; Giardina, Irene; Gradenigo, Giacomo; Grigera, Tomás Sebastián; Parisi, Giorgio; Verrocchio, Paolo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
Facultad de Ciencias Exactas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Física
dynamic heterogeneities
model glass former
overlap
thermodynamic potential
Maxwell construction
spinodal decomposition
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/126356
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/126356
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming LiquidsCammarota, ChiaraCavagna, AndreaGiardina, IreneGradenigo, GiacomoGrigera, Tomás SebastiánParisi, GiorgioVerrocchio, PaoloCiencias ExactasFísicadynamic heterogeneitiesmodel glass formeroverlapthermodynamic potentialMaxwell constructionspinodal decompositionWe 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.Facultad de Ciencias ExactasInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2010-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126356enginfo:eu-repo/semantics/altIdentifier/issn/1079-7114info:eu-repo/semantics/altIdentifier/issn/0031-9007info:eu-repo/semantics/altIdentifier/arxiv/1001.2539info:eu-repo/semantics/altIdentifier/pmid/20867935info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevlett.105.055703info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:18Zoai:sedici.unlp.edu.ar:10915/126356Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:18.319SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
title Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
spellingShingle Phase-Separation Perspective on Dynamic Heterogeneities in Glass-Forming Liquids
Cammarota, Chiara
Ciencias Exactas
Física
dynamic heterogeneities
model glass former
overlap
thermodynamic potential
Maxwell construction
spinodal decomposition
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
dc.creator.none.fl_str_mv Cammarota, Chiara
Cavagna, Andrea
Giardina, Irene
Gradenigo, Giacomo
Grigera, Tomás Sebastián
Parisi, Giorgio
Verrocchio, Paolo
author Cammarota, Chiara
author_facet Cammarota, Chiara
Cavagna, Andrea
Giardina, Irene
Gradenigo, Giacomo
Grigera, Tomás Sebastián
Parisi, Giorgio
Verrocchio, Paolo
author_role author
author2 Cavagna, Andrea
Giardina, Irene
Gradenigo, Giacomo
Grigera, Tomás Sebastián
Parisi, Giorgio
Verrocchio, Paolo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
dynamic heterogeneities
model glass former
overlap
thermodynamic potential
Maxwell construction
spinodal decomposition
topic Ciencias Exactas
Física
dynamic heterogeneities
model glass former
overlap
thermodynamic potential
Maxwell construction
spinodal decomposition
dc.description.none.fl_txt_mv 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.
Facultad de Ciencias Exactas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
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.
publishDate 2010
dc.date.none.fl_str_mv 2010-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/126356
url http://sedici.unlp.edu.ar/handle/10915/126356
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1079-7114
info:eu-repo/semantics/altIdentifier/issn/0031-9007
info:eu-repo/semantics/altIdentifier/arxiv/1001.2539
info:eu-repo/semantics/altIdentifier/pmid/20867935
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevlett.105.055703
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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