Evidence for a spinodal limit of amorphous excitations in glassy systems

Autores
Cammarota, Chiara; Cavagna, Andrea; Gradenigo, Giacomo; Grigera, Tomás Sebastián; Verrocchio, Paolo
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
What is the origin of the sharp slowdown displayed by glassy systems? Physical common sense suggests there must be a concomitant growing correlation length, but finding this length has been nontrivial. In random first-order theory, it is given by the size of amorphous excitations, which depends on a balance between their mutual interfacial energy and their configurational entropy. But how these excitations disappear when crossing over to the normal high temperature phase is unclear, chiefly due to lack of data about the surface tension. We measure the energy cost for creating amorphous excitations in a model glass-former, and discover that the surface tension vanishes at a well-defined spinodal energy, above which amorphous excitations cannot be sustained. This spinodal therefore marks the true onset of glassiness.
Facultad de Ciencias Exactas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Física
disordered systems (theory)
energy landscapes (theory)
structural glasses (theory)
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:10915/131040

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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Evidence for a spinodal limit of amorphous excitations in glassy systemsCammarota, ChiaraCavagna, AndreaGradenigo, GiacomoGrigera, Tomás SebastiánVerrocchio, PaoloCiencias ExactasFísicadisordered systems (theory)energy landscapes (theory)structural glasses (theory)What is the origin of the sharp slowdown displayed by glassy systems? Physical common sense suggests there must be a concomitant growing correlation length, but finding this length has been nontrivial. In random first-order theory, it is given by the size of amorphous excitations, which depends on a balance between their mutual interfacial energy and their configurational entropy. But how these excitations disappear when crossing over to the normal high temperature phase is unclear, chiefly due to lack of data about the surface tension. We measure the energy cost for creating amorphous excitations in a model glass-former, and discover that the surface tension vanishes at a well-defined spinodal energy, above which amorphous excitations cannot be sustained. This spinodal therefore marks the true onset of glassiness.Facultad de Ciencias ExactasInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2009-12info: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/10915/131040enginfo:eu-repo/semantics/altIdentifier/issn/1742-5468info:eu-repo/semantics/altIdentifier/arxiv/0904.1522info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/2009/12/l12002info: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:UNLP2025-09-29T11:31:13Zoai:sedici.unlp.edu.ar:10915/131040Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:13.868SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Evidence for a spinodal limit of amorphous excitations in glassy systems
title Evidence for a spinodal limit of amorphous excitations in glassy systems
spellingShingle Evidence for a spinodal limit of amorphous excitations in glassy systems
Cammarota, Chiara
Ciencias Exactas
Física
disordered systems (theory)
energy landscapes (theory)
structural glasses (theory)
title_short Evidence for a spinodal limit of amorphous excitations in glassy systems
title_full Evidence for a spinodal limit of amorphous excitations in glassy systems
title_fullStr Evidence for a spinodal limit of amorphous excitations in glassy systems
title_full_unstemmed Evidence for a spinodal limit of amorphous excitations in glassy systems
title_sort Evidence for a spinodal limit of amorphous excitations in glassy systems
dc.creator.none.fl_str_mv Cammarota, Chiara
Cavagna, Andrea
Gradenigo, Giacomo
Grigera, Tomás Sebastián
Verrocchio, Paolo
author Cammarota, Chiara
author_facet Cammarota, Chiara
Cavagna, Andrea
Gradenigo, Giacomo
Grigera, Tomás Sebastián
Verrocchio, Paolo
author_role author
author2 Cavagna, Andrea
Gradenigo, Giacomo
Grigera, Tomás Sebastián
Verrocchio, Paolo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
disordered systems (theory)
energy landscapes (theory)
structural glasses (theory)
topic Ciencias Exactas
Física
disordered systems (theory)
energy landscapes (theory)
structural glasses (theory)
dc.description.none.fl_txt_mv What is the origin of the sharp slowdown displayed by glassy systems? Physical common sense suggests there must be a concomitant growing correlation length, but finding this length has been nontrivial. In random first-order theory, it is given by the size of amorphous excitations, which depends on a balance between their mutual interfacial energy and their configurational entropy. But how these excitations disappear when crossing over to the normal high temperature phase is unclear, chiefly due to lack of data about the surface tension. We measure the energy cost for creating amorphous excitations in a model glass-former, and discover that the surface tension vanishes at a well-defined spinodal energy, above which amorphous excitations cannot be sustained. This spinodal therefore marks the true onset of glassiness.
Facultad de Ciencias Exactas
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description What is the origin of the sharp slowdown displayed by glassy systems? Physical common sense suggests there must be a concomitant growing correlation length, but finding this length has been nontrivial. In random first-order theory, it is given by the size of amorphous excitations, which depends on a balance between their mutual interfacial energy and their configurational entropy. But how these excitations disappear when crossing over to the normal high temperature phase is unclear, chiefly due to lack of data about the surface tension. We measure the energy cost for creating amorphous excitations in a model glass-former, and discover that the surface tension vanishes at a well-defined spinodal energy, above which amorphous excitations cannot be sustained. This spinodal therefore marks the true onset of glassiness.
publishDate 2009
dc.date.none.fl_str_mv 2009-12
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
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/131040
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dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/arxiv/0904.1522
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/2009/12/l12002
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
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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