Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case

Autores
Trobo, Marta Liliana; Albano, Ezequiel Vicente; Binder, Kurt
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
As a simplified model of a liquid nanostripe adsorbed on a chemically structured substrate surface, a two-dimensional Ising system with two boundaries at which surface fields act is studied. At the upper boundary, the surface field is uniformly negative, while at the lower boundary (a distance L apart), the surface field is negative only outside a range of extension b, where a positive surface stabilizes a droplet of the phase with positive magnetization for temperatures T exceeding the critical temperature Tw of the wetting transition of this model. We investigate the local order parameter profiles across the droplet, both in the directions parallel and perpendicular to the substrate, varying both b and T. Also, precursor effects to droplet formation as T approaches Tw from below are studied. In accord with theoretical predictions, for T>Tw the droplet is found to have the shape of a semiellipse, where the width (distance of the interface from the substrate) scale is proportional to b (b1/2). So, the area of the droplet is proportional to b3/2, and the temperature dependence of the corresponding prefactor, which also involves the interfacial stiffness, is studied.
Fil: Trobo, Marta Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Fisicomatemática; Argentina
Fil: Albano, Ezequiel Vicente. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: Binder, Kurt. Johannes Gutenberg Universitat Mainz; Alemania
Materia
DROPLETS
PINNED
ISING
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:11336/87894
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising caseTrobo, Marta LilianaAlbano, Ezequiel VicenteBinder, KurtDROPLETSPINNEDISINGhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1As a simplified model of a liquid nanostripe adsorbed on a chemically structured substrate surface, a two-dimensional Ising system with two boundaries at which surface fields act is studied. At the upper boundary, the surface field is uniformly negative, while at the lower boundary (a distance L apart), the surface field is negative only outside a range of extension b, where a positive surface stabilizes a droplet of the phase with positive magnetization for temperatures T exceeding the critical temperature Tw of the wetting transition of this model. We investigate the local order parameter profiles across the droplet, both in the directions parallel and perpendicular to the substrate, varying both b and T. Also, precursor effects to droplet formation as T approaches Tw from below are studied. In accord with theoretical predictions, for T>Tw the droplet is found to have the shape of a semiellipse, where the width (distance of the interface from the substrate) scale is proportional to b (b1/2). So, the area of the droplet is proportional to b3/2, and the temperature dependence of the corresponding prefactor, which also involves the interfacial stiffness, is studied.Fil: Trobo, Marta Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Fisicomatemática; ArgentinaFil: Albano, Ezequiel Vicente. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; ArgentinaFil: Binder, Kurt. Johannes Gutenberg Universitat Mainz; AlemaniaAmerican Physical Society2016-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87894Trobo, Marta Liliana; Albano, Ezequiel Vicente; Binder, Kurt; Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case; American Physical Society; Physical Review E; 93; 5; 5-2016; 1-82470-0045CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.052805info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.93.052805info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:11:48Zoai:ri.conicet.gov.ar:11336/87894instacron: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 10:11:48.767CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
title Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
spellingShingle Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
Trobo, Marta Liliana
DROPLETS
PINNED
ISING
title_short Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
title_full Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
title_fullStr Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
title_full_unstemmed Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
title_sort Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case
dc.creator.none.fl_str_mv Trobo, Marta Liliana
Albano, Ezequiel Vicente
Binder, Kurt
author Trobo, Marta Liliana
author_facet Trobo, Marta Liliana
Albano, Ezequiel Vicente
Binder, Kurt
author_role author
author2 Albano, Ezequiel Vicente
Binder, Kurt
author2_role author
author
dc.subject.none.fl_str_mv DROPLETS
PINNED
ISING
topic DROPLETS
PINNED
ISING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv As a simplified model of a liquid nanostripe adsorbed on a chemically structured substrate surface, a two-dimensional Ising system with two boundaries at which surface fields act is studied. At the upper boundary, the surface field is uniformly negative, while at the lower boundary (a distance L apart), the surface field is negative only outside a range of extension b, where a positive surface stabilizes a droplet of the phase with positive magnetization for temperatures T exceeding the critical temperature Tw of the wetting transition of this model. We investigate the local order parameter profiles across the droplet, both in the directions parallel and perpendicular to the substrate, varying both b and T. Also, precursor effects to droplet formation as T approaches Tw from below are studied. In accord with theoretical predictions, for T>Tw the droplet is found to have the shape of a semiellipse, where the width (distance of the interface from the substrate) scale is proportional to b (b1/2). So, the area of the droplet is proportional to b3/2, and the temperature dependence of the corresponding prefactor, which also involves the interfacial stiffness, is studied.
Fil: Trobo, Marta Liliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Fisicomatemática; Argentina
Fil: Albano, Ezequiel Vicente. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física de Líquidos y Sistemas Biológicos. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física de Líquidos y Sistemas Biológicos; Argentina
Fil: Binder, Kurt. Johannes Gutenberg Universitat Mainz; Alemania
description As a simplified model of a liquid nanostripe adsorbed on a chemically structured substrate surface, a two-dimensional Ising system with two boundaries at which surface fields act is studied. At the upper boundary, the surface field is uniformly negative, while at the lower boundary (a distance L apart), the surface field is negative only outside a range of extension b, where a positive surface stabilizes a droplet of the phase with positive magnetization for temperatures T exceeding the critical temperature Tw of the wetting transition of this model. We investigate the local order parameter profiles across the droplet, both in the directions parallel and perpendicular to the substrate, varying both b and T. Also, precursor effects to droplet formation as T approaches Tw from below are studied. In accord with theoretical predictions, for T>Tw the droplet is found to have the shape of a semiellipse, where the width (distance of the interface from the substrate) scale is proportional to b (b1/2). So, the area of the droplet is proportional to b3/2, and the temperature dependence of the corresponding prefactor, which also involves the interfacial stiffness, is studied.
publishDate 2016
dc.date.none.fl_str_mv 2016-05
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/11336/87894
Trobo, Marta Liliana; Albano, Ezequiel Vicente; Binder, Kurt; Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case; American Physical Society; Physical Review E; 93; 5; 5-2016; 1-8
2470-0045
CONICET Digital
CONICET
url http://hdl.handle.net/11336/87894
identifier_str_mv Trobo, Marta Liliana; Albano, Ezequiel Vicente; Binder, Kurt; Droplets pinned at chemically inhomogenous substrates: A simulation study of the two-dimensional Ising case; American Physical Society; Physical Review E; 93; 5; 5-2016; 1-8
2470-0045
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://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.052805
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.93.052805
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
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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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