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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/131040
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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 |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/131040 |
url |
http://sedici.unlp.edu.ar/handle/10915/131040 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/issn/1742-5468 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) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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application/pdf |
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