Time evolution of clusters of mobile particles in a model glass former

Autores
Appignanesi, Gustavo Adrian; Frechero, Marisa Alejandra; Montani, Ruben Alfredo
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we investigate by means of molecular dynamics simulations the detailed time evolution of string-like cooperative motions in a binary Lennard–Jones system at temperatures close to its mode-coupling temperature, Tc. The strings will be fully geometrically and dynam- ically characterised, making evident the correlated and concerted nature of the motions of the particles comprised. We shall show that at low temperature each string occurs in a sharp time window within the time interval [0; t∗], where t∗ is a characteristic time related to the lifetime of the global clusters of mobile particles. Moreover, the di5erent strings that comprise a given global cluster will be shown to take place independently and asynchronically, thus providing further support to the heterogeneous scenario of relaxation, but in which di5erent independent string-like sub-regions relax at di5erent timescales. Finally, we shall also demonstrate that as temperature is increased the strings evolve during an increasing fraction of the time interval [0; t∗] and that for T ∼ 0:55 the lifetimes of the strings and of the global clusters become akin to each other.
Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Matemática Bahía Blanca. Universidad Nacional del Sur. Departamento de Matemática. Instituto de Matemática Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; Argentina
Fil: Frechero, Marisa Alejandra. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Montani, Ruben Alfredo. Universidad Nacional del Sur. Departamento de Química; Argentina
Materia
GLASS
TRANSITION
CLUSTERS
DYNAMICS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/153073
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Time evolution of clusters of mobile particles in a model glass formerAppignanesi, Gustavo AdrianFrechero, Marisa AlejandraMontani, Ruben AlfredoGLASSTRANSITIONCLUSTERSDYNAMICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work we investigate by means of molecular dynamics simulations the detailed time evolution of string-like cooperative motions in a binary Lennard–Jones system at temperatures close to its mode-coupling temperature, Tc. The strings will be fully geometrically and dynam- ically characterised, making evident the correlated and concerted nature of the motions of the particles comprised. We shall show that at low temperature each string occurs in a sharp time window within the time interval [0; t∗], where t∗ is a characteristic time related to the lifetime of the global clusters of mobile particles. Moreover, the di5erent strings that comprise a given global cluster will be shown to take place independently and asynchronically, thus providing further support to the heterogeneous scenario of relaxation, but in which di5erent independent string-like sub-regions relax at di5erent timescales. Finally, we shall also demonstrate that as temperature is increased the strings evolve during an increasing fraction of the time interval [0; t∗] and that for T ∼ 0:55 the lifetimes of the strings and of the global clusters become akin to each other.Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Matemática Bahía Blanca. Universidad Nacional del Sur. Departamento de Matemática. Instituto de Matemática Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; ArgentinaFil: Frechero, Marisa Alejandra. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; ArgentinaFil: Montani, Ruben Alfredo. Universidad Nacional del Sur. Departamento de Química; ArgentinaElsevier Science2003-01-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/153073Appignanesi, Gustavo Adrian; Frechero, Marisa Alejandra; Montani, Ruben Alfredo; Time evolution of clusters of mobile particles in a model glass former; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 329; 15-1-2003; 41-520378-4371CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378437103005065info:eu-repo/semantics/altIdentifier/doi/10.1016/S0378-4371(03)00506-5info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:54Zoai:ri.conicet.gov.ar:11336/153073instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:01:55.131CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Time evolution of clusters of mobile particles in a model glass former
title Time evolution of clusters of mobile particles in a model glass former
spellingShingle Time evolution of clusters of mobile particles in a model glass former
Appignanesi, Gustavo Adrian
GLASS
TRANSITION
CLUSTERS
DYNAMICS
title_short Time evolution of clusters of mobile particles in a model glass former
title_full Time evolution of clusters of mobile particles in a model glass former
title_fullStr Time evolution of clusters of mobile particles in a model glass former
title_full_unstemmed Time evolution of clusters of mobile particles in a model glass former
title_sort Time evolution of clusters of mobile particles in a model glass former
dc.creator.none.fl_str_mv Appignanesi, Gustavo Adrian
Frechero, Marisa Alejandra
Montani, Ruben Alfredo
author Appignanesi, Gustavo Adrian
author_facet Appignanesi, Gustavo Adrian
Frechero, Marisa Alejandra
Montani, Ruben Alfredo
author_role author
author2 Frechero, Marisa Alejandra
Montani, Ruben Alfredo
author2_role author
author
dc.subject.none.fl_str_mv GLASS
TRANSITION
CLUSTERS
DYNAMICS
topic GLASS
TRANSITION
CLUSTERS
DYNAMICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we investigate by means of molecular dynamics simulations the detailed time evolution of string-like cooperative motions in a binary Lennard–Jones system at temperatures close to its mode-coupling temperature, Tc. The strings will be fully geometrically and dynam- ically characterised, making evident the correlated and concerted nature of the motions of the particles comprised. We shall show that at low temperature each string occurs in a sharp time window within the time interval [0; t∗], where t∗ is a characteristic time related to the lifetime of the global clusters of mobile particles. Moreover, the di5erent strings that comprise a given global cluster will be shown to take place independently and asynchronically, thus providing further support to the heterogeneous scenario of relaxation, but in which di5erent independent string-like sub-regions relax at di5erent timescales. Finally, we shall also demonstrate that as temperature is increased the strings evolve during an increasing fraction of the time interval [0; t∗] and that for T ∼ 0:55 the lifetimes of the strings and of the global clusters become akin to each other.
Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Matemática Bahía Blanca. Universidad Nacional del Sur. Departamento de Matemática. Instituto de Matemática Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Química; Argentina
Fil: Frechero, Marisa Alejandra. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina
Fil: Montani, Ruben Alfredo. Universidad Nacional del Sur. Departamento de Química; Argentina
description In this work we investigate by means of molecular dynamics simulations the detailed time evolution of string-like cooperative motions in a binary Lennard–Jones system at temperatures close to its mode-coupling temperature, Tc. The strings will be fully geometrically and dynam- ically characterised, making evident the correlated and concerted nature of the motions of the particles comprised. We shall show that at low temperature each string occurs in a sharp time window within the time interval [0; t∗], where t∗ is a characteristic time related to the lifetime of the global clusters of mobile particles. Moreover, the di5erent strings that comprise a given global cluster will be shown to take place independently and asynchronically, thus providing further support to the heterogeneous scenario of relaxation, but in which di5erent independent string-like sub-regions relax at di5erent timescales. Finally, we shall also demonstrate that as temperature is increased the strings evolve during an increasing fraction of the time interval [0; t∗] and that for T ∼ 0:55 the lifetimes of the strings and of the global clusters become akin to each other.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/153073
Appignanesi, Gustavo Adrian; Frechero, Marisa Alejandra; Montani, Ruben Alfredo; Time evolution of clusters of mobile particles in a model glass former; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 329; 15-1-2003; 41-52
0378-4371
CONICET Digital
CONICET
url http://hdl.handle.net/11336/153073
identifier_str_mv Appignanesi, Gustavo Adrian; Frechero, Marisa Alejandra; Montani, Ruben Alfredo; Time evolution of clusters of mobile particles in a model glass former; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 329; 15-1-2003; 41-52
0378-4371
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0378437103005065
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0378-4371(03)00506-5
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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