Phase separation dynamics in a concetration gradient

Phase separation dynamics with an initially nonuniform concentration are studied. Critical and off-critical behavior is observed simultaneously. A mechanism for an expanding phase-separated region is demonstrated and the time dependence of the concentration is determined. The final equilibrium state...

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Detalles Bibliográficos
Autores: Lacasta Palacio, Ana María|||0000-0002-9060-6043, Sancho, Jose Maria, Yeung, C.
Tipo de recurso: artículo
Fecha de publicación:1994
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/16882
Acceso en línea:https://hdl.handle.net/2117/16882
Access Level:acceso abierto
Palabra clave:Condensed matter GEC
Nonlinear dynamics
Phase separation
Concentration gradients
Matèria condensada
Àrees temàtiques de la UPC::Física::Física de l'estat sòlid
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spelling Phase separation dynamics in a concetration gradientLacasta Palacio, Ana María|||0000-0002-9060-6043Sancho, Jose MariaYeung, C.Condensed matter GECNonlinear dynamicsPhase separationConcentration gradientsMatèria condensadaÀrees temàtiques de la UPC::Física::Física de l'estat sòlidPhase separation dynamics with an initially nonuniform concentration are studied. Critical and off-critical behavior is observed simultaneously. A mechanism for an expanding phase-separated region is demonstrated and the time dependence of the concentration is determined. The final equilibrium state consists of a planar interface separating one phase from the other. The evolution to this state is characterized by an experimentally observable flux, j, crossing this interface. We find that j ~ t−2/3 if patterns are formed in the bulk and j ~ t−1/2 if the bulk remains homogeneous. The results are explained in terms of scaling arguments which are confirmed numerically.Peer ReviewedEDP Sciences19941994-08-0120122012-11-12journal articlehttp://purl.org/coar/resource_type/c_6501AOhttp://purl.org/coar/version/c_b1a7d7d4d402bcceinfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/16882reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/168822026-05-27T15:37:01Z
dc.title.none.fl_str_mv Phase separation dynamics in a concetration gradient
title Phase separation dynamics in a concetration gradient
spellingShingle Phase separation dynamics in a concetration gradient
Lacasta Palacio, Ana María|||0000-0002-9060-6043
Condensed matter GEC
Nonlinear dynamics
Phase separation
Concentration gradients
Matèria condensada
Àrees temàtiques de la UPC::Física::Física de l'estat sòlid
title_short Phase separation dynamics in a concetration gradient
title_full Phase separation dynamics in a concetration gradient
title_fullStr Phase separation dynamics in a concetration gradient
title_full_unstemmed Phase separation dynamics in a concetration gradient
title_sort Phase separation dynamics in a concetration gradient
dc.creator.none.fl_str_mv Lacasta Palacio, Ana María|||0000-0002-9060-6043
Sancho, Jose Maria
Yeung, C.
author Lacasta Palacio, Ana María|||0000-0002-9060-6043
author_facet Lacasta Palacio, Ana María|||0000-0002-9060-6043
Sancho, Jose Maria
Yeung, C.
author_role author
author2 Sancho, Jose Maria
Yeung, C.
author2_role author
author
dc.subject.none.fl_str_mv Condensed matter GEC
Nonlinear dynamics
Phase separation
Concentration gradients
Matèria condensada
Àrees temàtiques de la UPC::Física::Física de l'estat sòlid
topic Condensed matter GEC
Nonlinear dynamics
Phase separation
Concentration gradients
Matèria condensada
Àrees temàtiques de la UPC::Física::Física de l'estat sòlid
description Phase separation dynamics with an initially nonuniform concentration are studied. Critical and off-critical behavior is observed simultaneously. A mechanism for an expanding phase-separated region is demonstrated and the time dependence of the concentration is determined. The final equilibrium state consists of a planar interface separating one phase from the other. The evolution to this state is characterized by an experimentally observable flux, j, crossing this interface. We find that j ~ t−2/3 if patterns are formed in the bulk and j ~ t−1/2 if the bulk remains homogeneous. The results are explained in terms of scaling arguments which are confirmed numerically.
publishDate 1994
dc.date.none.fl_str_mv 1994
1994-08-01
2012
2012-11-12
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AO
http://purl.org/coar/version/c_b1a7d7d4d402bcce
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/16882
url https://hdl.handle.net/2117/16882
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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