Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy

The morphological evolution of columnar gold electrodeposits grown at 100 nm s <sup>−1</sup> by electroreducing a gold oxide layer on a gold cathode has been studied at a nanometer level by scanning tunneling microscopy. The interface thickness (ξ) depends on the scan length (L) as ξ∝ L...

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Detalhes bibliográficos
Autores: Vázquez, L., Salvarezza, Roberto Carlos, Ocón, P., Herrasti, P., Vara, J. M., Arvia, Alejandro Jorge
Formato: artículo
Estado:Versión publicada
Fecha de publicación:1994
País:Argentina
Recursos:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/85650
Acesso em linha:http://sedici.unlp.edu.ar/handle/10915/85650
Access Level:acceso abierto
Palavra-chave:Ciencias Exactas
Química
Fractales
electrodeposits
electroreduction
Oro
scanning tunneling microscopy
Óxidos
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repository_id_str
spelling Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopyVázquez, L.Salvarezza, Roberto CarlosOcón, P.Herrasti, P.Vara, J. M.Arvia, Alejandro JorgeCiencias ExactasQuímicaFractaleselectrodepositselectroreductionOroscanning tunneling microscopyÓxidosThe morphological evolution of columnar gold electrodeposits grown at 100 nm s <sup>−1</sup> by electroreducing a gold oxide layer on a gold cathode has been studied at a nanometer level by scanning tunneling microscopy. The interface thickness (ξ) depends on the scan length (L) as ξ∝ L <sup>α</sup> with α=0.49±0.07 for L > d<sub>s</sub>, where d<sub>s</sub> is the average top columnar size, and α=0.90±0.07 for L < d<sub>s</sub>. These results prove that the growing surface can be described as a self-affine fractal for length scales greater than the columnar size. Conversely, the columnar surface approaches the behavior of an Euclidean surface.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ciencias Exactas1994-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1507-1511http://sedici.unlp.edu.ar/handle/10915/85650enginfo:eu-repo/semantics/altIdentifier/issn/1063-651Xinfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.49.1507info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2024-05-08T12:54:36Zoai:sedici.unlp.edu.ar:10915/85650Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292024-05-08 12:54:36.972SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
title Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
spellingShingle Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
Vázquez, L.
Ciencias Exactas
Química
Fractales
electrodeposits
electroreduction
Oro
scanning tunneling microscopy
Óxidos
title_short Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
title_full Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
title_fullStr Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
title_full_unstemmed Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
title_sort Self-affine fractal electrodeposited gold surfaces : Characterization by scanning tunneling microscopy
dc.creator.none.fl_str_mv Vázquez, L.
Salvarezza, Roberto Carlos
Ocón, P.
Herrasti, P.
Vara, J. M.
Arvia, Alejandro Jorge
author Vázquez, L.
author_facet Vázquez, L.
Salvarezza, Roberto Carlos
Ocón, P.
Herrasti, P.
Vara, J. M.
Arvia, Alejandro Jorge
author_role author
author2 Salvarezza, Roberto Carlos
Ocón, P.
Herrasti, P.
Vara, J. M.
Arvia, Alejandro Jorge
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Fractales
electrodeposits
electroreduction
Oro
scanning tunneling microscopy
Óxidos
topic Ciencias Exactas
Química
Fractales
electrodeposits
electroreduction
Oro
scanning tunneling microscopy
Óxidos
description The morphological evolution of columnar gold electrodeposits grown at 100 nm s <sup>−1</sup> by electroreducing a gold oxide layer on a gold cathode has been studied at a nanometer level by scanning tunneling microscopy. The interface thickness (ξ) depends on the scan length (L) as ξ∝ L <sup>α</sup> with α=0.49±0.07 for L > d<sub>s</sub>, where d<sub>s</sub> is the average top columnar size, and α=0.90±0.07 for L < d<sub>s</sub>. These results prove that the growing surface can be described as a self-affine fractal for length scales greater than the columnar size. Conversely, the columnar surface approaches the behavior of an Euclidean surface.
publishDate 1994
dc.date.none.fl_str_mv 1994-02-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/85650
url http://sedici.unlp.edu.ar/handle/10915/85650
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1063-651X
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevE.49.1507
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
1507-1511
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 15,228081

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