Low-coverage heteroepitaxial growth with interfacial mixing

Autores
Mazzitello, Karina Irma; Delgado, L. M.; Iguain, Jose Luis
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the influence of intermixing on heteroepitaxial growth dynamics, using a two-dimensional point island model, expected to be a good approximation in the early stages of epitaxy. In this model, which we explore both analytically and numerically, every deposited B atom diffuses on the surface with diffusion constant DB and can exchange with any A atom of the substrate at constant rate. There is no exchange back and emerging atoms diffuse on the surface with diffusion constant DA. When any two diffusing atoms meet, they nucleate a point island. The islands neither diffuse nor break and grow by capturing other diffusing atoms. The model leads to an island density governed by the diffusion of one of the species at low temperature and by the diffusion of the other at high temperature. We show that these limit behaviors, as well as intermediate ones, all belong to the same universality class, described by a scaling law. We also show that the island-size distribution is self-similarly described by a dynamic scaling law in the limits where only one diffusion constant is relevant to the dynamics and that this law is affected when both DA and DB play a role.
Fil: Mazzitello, Karina Irma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Delgado, L. M.. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Iguain, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Materia
Heteroepitaxy (Theory)
Kinetic Growth Processes (Theory)
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:11336/50642
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Low-coverage heteroepitaxial growth with interfacial mixingMazzitello, Karina IrmaDelgado, L. M.Iguain, Jose LuisHeteroepitaxy (Theory)Kinetic Growth Processes (Theory)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the influence of intermixing on heteroepitaxial growth dynamics, using a two-dimensional point island model, expected to be a good approximation in the early stages of epitaxy. In this model, which we explore both analytically and numerically, every deposited B atom diffuses on the surface with diffusion constant DB and can exchange with any A atom of the substrate at constant rate. There is no exchange back and emerging atoms diffuse on the surface with diffusion constant DA. When any two diffusing atoms meet, they nucleate a point island. The islands neither diffuse nor break and grow by capturing other diffusing atoms. The model leads to an island density governed by the diffusion of one of the species at low temperature and by the diffusion of the other at high temperature. We show that these limit behaviors, as well as intermediate ones, all belong to the same universality class, described by a scaling law. We also show that the island-size distribution is self-similarly described by a dynamic scaling law in the limits where only one diffusion constant is relevant to the dynamics and that this law is affected when both DA and DB play a role.Fil: Mazzitello, Karina Irma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; ArgentinaFil: Delgado, L. M.. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; ArgentinaFil: Iguain, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaIOP Publishing2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/50642Mazzitello, Karina Irma; Delgado, L. M.; Iguain, Jose Luis; Low-coverage heteroepitaxial growth with interfacial mixing; IOP Publishing; Journal of Statistical Mechanics: Theory and Experiment; 2015; 1; 1-2015; 1-151742-5468CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/2015/01/P01015info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1742-5468/2015/01/P01015/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:14:28Zoai:ri.conicet.gov.ar:11336/50642instacron: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:34982025-10-15 15:14:29.082CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Low-coverage heteroepitaxial growth with interfacial mixing
title Low-coverage heteroepitaxial growth with interfacial mixing
spellingShingle Low-coverage heteroepitaxial growth with interfacial mixing
Mazzitello, Karina Irma
Heteroepitaxy (Theory)
Kinetic Growth Processes (Theory)
title_short Low-coverage heteroepitaxial growth with interfacial mixing
title_full Low-coverage heteroepitaxial growth with interfacial mixing
title_fullStr Low-coverage heteroepitaxial growth with interfacial mixing
title_full_unstemmed Low-coverage heteroepitaxial growth with interfacial mixing
title_sort Low-coverage heteroepitaxial growth with interfacial mixing
dc.creator.none.fl_str_mv Mazzitello, Karina Irma
Delgado, L. M.
Iguain, Jose Luis
author Mazzitello, Karina Irma
author_facet Mazzitello, Karina Irma
Delgado, L. M.
Iguain, Jose Luis
author_role author
author2 Delgado, L. M.
Iguain, Jose Luis
author2_role author
author
dc.subject.none.fl_str_mv Heteroepitaxy (Theory)
Kinetic Growth Processes (Theory)
topic Heteroepitaxy (Theory)
Kinetic Growth Processes (Theory)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We investigate the influence of intermixing on heteroepitaxial growth dynamics, using a two-dimensional point island model, expected to be a good approximation in the early stages of epitaxy. In this model, which we explore both analytically and numerically, every deposited B atom diffuses on the surface with diffusion constant DB and can exchange with any A atom of the substrate at constant rate. There is no exchange back and emerging atoms diffuse on the surface with diffusion constant DA. When any two diffusing atoms meet, they nucleate a point island. The islands neither diffuse nor break and grow by capturing other diffusing atoms. The model leads to an island density governed by the diffusion of one of the species at low temperature and by the diffusion of the other at high temperature. We show that these limit behaviors, as well as intermediate ones, all belong to the same universality class, described by a scaling law. We also show that the island-size distribution is self-similarly described by a dynamic scaling law in the limits where only one diffusion constant is relevant to the dynamics and that this law is affected when both DA and DB play a role.
Fil: Mazzitello, Karina Irma. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Delgado, L. M.. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Departamento de Física; Argentina
Fil: Iguain, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
description We investigate the influence of intermixing on heteroepitaxial growth dynamics, using a two-dimensional point island model, expected to be a good approximation in the early stages of epitaxy. In this model, which we explore both analytically and numerically, every deposited B atom diffuses on the surface with diffusion constant DB and can exchange with any A atom of the substrate at constant rate. There is no exchange back and emerging atoms diffuse on the surface with diffusion constant DA. When any two diffusing atoms meet, they nucleate a point island. The islands neither diffuse nor break and grow by capturing other diffusing atoms. The model leads to an island density governed by the diffusion of one of the species at low temperature and by the diffusion of the other at high temperature. We show that these limit behaviors, as well as intermediate ones, all belong to the same universality class, described by a scaling law. We also show that the island-size distribution is self-similarly described by a dynamic scaling law in the limits where only one diffusion constant is relevant to the dynamics and that this law is affected when both DA and DB play a role.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/50642
Mazzitello, Karina Irma; Delgado, L. M.; Iguain, Jose Luis; Low-coverage heteroepitaxial growth with interfacial mixing; IOP Publishing; Journal of Statistical Mechanics: Theory and Experiment; 2015; 1; 1-2015; 1-15
1742-5468
CONICET Digital
CONICET
url http://hdl.handle.net/11336/50642
identifier_str_mv Mazzitello, Karina Irma; Delgado, L. M.; Iguain, Jose Luis; Low-coverage heteroepitaxial growth with interfacial mixing; IOP Publishing; Journal of Statistical Mechanics: Theory and Experiment; 2015; 1; 1-2015; 1-15
1742-5468
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/2015/01/P01015
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1742-5468/2015/01/P01015/meta
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 13.22299

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