Evidence of a two-state picture for supercooled water and its connections with glassy dynamics

Autores
Appignanesi, Gustavo Adrian; Rodriguez Fris, Jorge Ariel; Sciortino, Francesco
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The picture of liquid water as consisting of a mixture of molecules of two different structural states (structured, low-density molecules and unstructured, high-density ones) represents a belief that has been around for long time awaiting for a conclusive validation. While in the last years some indicators have indeed provided certain evidence for the existence of structurally different ``species´´, a more definite bimodality in the distribution function of a sound structural quantity would be desired. In this context, our present work combines the use of a structural parameter with a minimization technique to yield neat bimodal distributions in a temperature range within the supercooled liquid regime, thus clearly revealing the presence of two populations of differently structured water molecules. Furthermore, we elucidate the role of the inter-conversion between the identified two kinds of states for the dynamics of structural relaxation, thus linking structural information to dynamics, a longstanding issue in glass physics.
Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Rodriguez Fris, Jorge Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Sciortino, Francesco. Università di Roma; Italia
Materia
Water
Supercooled Liquids
Two-State Picture
Relaxation
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:11336/66172
Acceder
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spelling Evidence of a two-state picture for supercooled water and its connections with glassy dynamicsAppignanesi, Gustavo AdrianRodriguez Fris, Jorge ArielSciortino, FrancescoWaterSupercooled LiquidsTwo-State PictureRelaxationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The picture of liquid water as consisting of a mixture of molecules of two different structural states (structured, low-density molecules and unstructured, high-density ones) represents a belief that has been around for long time awaiting for a conclusive validation. While in the last years some indicators have indeed provided certain evidence for the existence of structurally different ``species´´, a more definite bimodality in the distribution function of a sound structural quantity would be desired. In this context, our present work combines the use of a structural parameter with a minimization technique to yield neat bimodal distributions in a temperature range within the supercooled liquid regime, thus clearly revealing the presence of two populations of differently structured water molecules. Furthermore, we elucidate the role of the inter-conversion between the identified two kinds of states for the dynamics of structural relaxation, thus linking structural information to dynamics, a longstanding issue in glass physics.Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Rodriguez Fris, Jorge Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Sciortino, Francesco. Università di Roma; ItaliaEDP Sciences, Società Italiana di Fisica and Springer-Verlag2009-12info: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/11336/66172Appignanesi, Gustavo Adrian; Rodriguez Fris, Jorge Ariel; Sciortino, Francesco; Evidence of a two-state picture for supercooled water and its connections with glassy dynamics; EDP Sciences, Società Italiana di Fisica and Springer-Verlag; The European Physical Journal E; 29; 3; 12-2009; 305-3101292-895XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1140/epje/i2009-10478-6info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepje%2Fi2009-10478-6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:58Zoai:ri.conicet.gov.ar:11336/66172instacron: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 09:46:58.79CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
title Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
spellingShingle Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
Appignanesi, Gustavo Adrian
Water
Supercooled Liquids
Two-State Picture
Relaxation
title_short Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
title_full Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
title_fullStr Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
title_full_unstemmed Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
title_sort Evidence of a two-state picture for supercooled water and its connections with glassy dynamics
dc.creator.none.fl_str_mv Appignanesi, Gustavo Adrian
Rodriguez Fris, Jorge Ariel
Sciortino, Francesco
author Appignanesi, Gustavo Adrian
author_facet Appignanesi, Gustavo Adrian
Rodriguez Fris, Jorge Ariel
Sciortino, Francesco
author_role author
author2 Rodriguez Fris, Jorge Ariel
Sciortino, Francesco
author2_role author
author
dc.subject.none.fl_str_mv Water
Supercooled Liquids
Two-State Picture
Relaxation
topic Water
Supercooled Liquids
Two-State Picture
Relaxation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The picture of liquid water as consisting of a mixture of molecules of two different structural states (structured, low-density molecules and unstructured, high-density ones) represents a belief that has been around for long time awaiting for a conclusive validation. While in the last years some indicators have indeed provided certain evidence for the existence of structurally different ``species´´, a more definite bimodality in the distribution function of a sound structural quantity would be desired. In this context, our present work combines the use of a structural parameter with a minimization technique to yield neat bimodal distributions in a temperature range within the supercooled liquid regime, thus clearly revealing the presence of two populations of differently structured water molecules. Furthermore, we elucidate the role of the inter-conversion between the identified two kinds of states for the dynamics of structural relaxation, thus linking structural information to dynamics, a longstanding issue in glass physics.
Fil: Appignanesi, Gustavo Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Rodriguez Fris, Jorge Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Sciortino, Francesco. Università di Roma; Italia
description The picture of liquid water as consisting of a mixture of molecules of two different structural states (structured, low-density molecules and unstructured, high-density ones) represents a belief that has been around for long time awaiting for a conclusive validation. While in the last years some indicators have indeed provided certain evidence for the existence of structurally different ``species´´, a more definite bimodality in the distribution function of a sound structural quantity would be desired. In this context, our present work combines the use of a structural parameter with a minimization technique to yield neat bimodal distributions in a temperature range within the supercooled liquid regime, thus clearly revealing the presence of two populations of differently structured water molecules. Furthermore, we elucidate the role of the inter-conversion between the identified two kinds of states for the dynamics of structural relaxation, thus linking structural information to dynamics, a longstanding issue in glass physics.
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
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/11336/66172
Appignanesi, Gustavo Adrian; Rodriguez Fris, Jorge Ariel; Sciortino, Francesco; Evidence of a two-state picture for supercooled water and its connections with glassy dynamics; EDP Sciences, Società Italiana di Fisica and Springer-Verlag; The European Physical Journal E; 29; 3; 12-2009; 305-310
1292-895X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66172
identifier_str_mv Appignanesi, Gustavo Adrian; Rodriguez Fris, Jorge Ariel; Sciortino, Francesco; Evidence of a two-state picture for supercooled water and its connections with glassy dynamics; EDP Sciences, Società Italiana di Fisica and Springer-Verlag; The European Physical Journal E; 29; 3; 12-2009; 305-310
1292-895X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1140/epje/i2009-10478-6
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1140%2Fepje%2Fi2009-10478-6
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 EDP Sciences, Società Italiana di Fisica and Springer-Verlag
publisher.none.fl_str_mv EDP Sciences, Società Italiana di Fisica and Springer-Verlag
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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