ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys

Autores
Volker, Edgar; Williams, Federico José; Jacob, Timo; Schiffrin, D. J.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Surface segregation of Pb has been studied using angle resolved X-ray Photoelectron Spectroscopy (ARXPS) and Density Functional Theory (DFT) modelling in a polycrystalline Au0.85Cu0.15 alloy. Au surface enrichment was found in the alloy surface, whereas Pb surface enrichment was detected after annealing. ARXPS depth profiles show a 23% surface coverage by Pb atoms. DFT calculations predict an approximate coverage of ¼ monolayer (ML) of Pb atoms in the first atomic layer, consistent with the experimental results. The results presented here are an example of the importance of low concentration of impurities in determining the surface composition of bulk alloys.
Fil: Volker, Edgar. University of Liverpool; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Williams, Federico José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Jacob, Timo. Universitat Ulm; Alemania
Fil: Schiffrin, D. J.. University of Liverpool; Reino Unido
Materia
Alloys
Segregation
Xps
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/30352
Acceder
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network_name_str CONICET Digital (CONICET)
spelling ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloysVolker, EdgarWilliams, Federico JoséJacob, TimoSchiffrin, D. J.AlloysSegregationXpshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Surface segregation of Pb has been studied using angle resolved X-ray Photoelectron Spectroscopy (ARXPS) and Density Functional Theory (DFT) modelling in a polycrystalline Au0.85Cu0.15 alloy. Au surface enrichment was found in the alloy surface, whereas Pb surface enrichment was detected after annealing. ARXPS depth profiles show a 23% surface coverage by Pb atoms. DFT calculations predict an approximate coverage of ¼ monolayer (ML) of Pb atoms in the first atomic layer, consistent with the experimental results. The results presented here are an example of the importance of low concentration of impurities in determining the surface composition of bulk alloys.Fil: Volker, Edgar. University of Liverpool; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Williams, Federico José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Jacob, Timo. Universitat Ulm; AlemaniaFil: Schiffrin, D. J.. University of Liverpool; Reino UnidoElsevier Science2013-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30352Volker, Edgar; Williams, Federico José; Jacob, Timo; Schiffrin, D. J.; ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys; Elsevier Science; Journal of Alloys and Compounds; 586; 10-2013; 475-4780925-8388CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jallcom.2013.10.119info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925838813025346info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:11:34Zoai:ri.conicet.gov.ar:11336/30352instacron: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:34982025-09-10 13:11:34.361CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
title ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
spellingShingle ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
Volker, Edgar
Alloys
Segregation
Xps
title_short ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
title_full ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
title_fullStr ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
title_full_unstemmed ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
title_sort ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys
dc.creator.none.fl_str_mv Volker, Edgar
Williams, Federico José
Jacob, Timo
Schiffrin, D. J.
author Volker, Edgar
author_facet Volker, Edgar
Williams, Federico José
Jacob, Timo
Schiffrin, D. J.
author_role author
author2 Williams, Federico José
Jacob, Timo
Schiffrin, D. J.
author2_role author
author
author
dc.subject.none.fl_str_mv Alloys
Segregation
Xps
topic Alloys
Segregation
Xps
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Surface segregation of Pb has been studied using angle resolved X-ray Photoelectron Spectroscopy (ARXPS) and Density Functional Theory (DFT) modelling in a polycrystalline Au0.85Cu0.15 alloy. Au surface enrichment was found in the alloy surface, whereas Pb surface enrichment was detected after annealing. ARXPS depth profiles show a 23% surface coverage by Pb atoms. DFT calculations predict an approximate coverage of ¼ monolayer (ML) of Pb atoms in the first atomic layer, consistent with the experimental results. The results presented here are an example of the importance of low concentration of impurities in determining the surface composition of bulk alloys.
Fil: Volker, Edgar. University of Liverpool; Reino Unido. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Williams, Federico José. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Jacob, Timo. Universitat Ulm; Alemania
Fil: Schiffrin, D. J.. University of Liverpool; Reino Unido
description Surface segregation of Pb has been studied using angle resolved X-ray Photoelectron Spectroscopy (ARXPS) and Density Functional Theory (DFT) modelling in a polycrystalline Au0.85Cu0.15 alloy. Au surface enrichment was found in the alloy surface, whereas Pb surface enrichment was detected after annealing. ARXPS depth profiles show a 23% surface coverage by Pb atoms. DFT calculations predict an approximate coverage of ¼ monolayer (ML) of Pb atoms in the first atomic layer, consistent with the experimental results. The results presented here are an example of the importance of low concentration of impurities in determining the surface composition of bulk alloys.
publishDate 2013
dc.date.none.fl_str_mv 2013-10
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/11336/30352
Volker, Edgar; Williams, Federico José; Jacob, Timo; Schiffrin, D. J.; ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys; Elsevier Science; Journal of Alloys and Compounds; 586; 10-2013; 475-478
0925-8388
CONICET Digital
CONICET
url http://hdl.handle.net/11336/30352
identifier_str_mv Volker, Edgar; Williams, Federico José; Jacob, Timo; Schiffrin, D. J.; ARXPS and DFT studies of thermally induced Pb surface segregation on Au/Cu alloys; Elsevier Science; Journal of Alloys and Compounds; 586; 10-2013; 475-478
0925-8388
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jallcom.2013.10.119
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0925838813025346
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 12.993085

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