A model for disorder in vicinal surfaces

Detalhes bibliográficos
Autor(a) principal: Carriço, Artur da Silva
Data de Publicação: 1991
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/28685
https://doi.org/10.1088/0031-8949/44/4/014
Resumo: The average spectrum of a disordered f.c.c. vicinal surface is obtained from effective medium Green's function. The disorder is restricted to the surface plane and the scattering in the surface is treated in the Coherent Potential Approximation. The method applies to site-diagonal disorder and is valid for any crystallographic orientation. An application is made for an s-like Tight-Binding Hamiltonian with substitutional disorder. Depending on the strength of the perturbation potential, resonances or local bands are found in the surface spectrum.
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spelling Carriço, Artur da Silva2020-03-30T19:35:45Z2020-03-30T19:35:45Z1991CARRIÇO, Artur da Silva. A model for disorder in vicinal surfaces. Physica Scripta, v. 44, p. 384-387, 1991.ISSN 1402-4896. DOI: https://doi.org/10.1088/0031-8949/44/4/014. Disponível em: https://iopscience.iop.org/article/10.1088/0031-8949/44/4/014. Acesso em: 30 mar. 2020.https://repositorio.ufrn.br/jspui/handle/123456789/28685https://doi.org/10.1088/0031-8949/44/4/014The average spectrum of a disordered f.c.c. vicinal surface is obtained from effective medium Green's function. The disorder is restricted to the surface plane and the scattering in the surface is treated in the Coherent Potential Approximation. The method applies to site-diagonal disorder and is valid for any crystallographic orientation. An application is made for an s-like Tight-Binding Hamiltonian with substitutional disorder. Depending on the strength of the perturbation potential, resonances or local bands are found in the surface spectrum.The average spectrum of a disordered f.c.c. vicinal surface is obtained from effective medium Green's function. The disorder is restricted to the surface plane and the scattering in the surface is treated in the Coherent Potential Approximation. The method applies to site-diagonal disorder and is valid for any crystallographic orientation. An application is made for an s-like Tight-Binding Hamiltonian with substitutional disorder. Depending on the strength of the perturbation potential, resonances or local bands are found in the surface spectrum.IOP Publishing LtdaDisorderVicinal surfaceA model for disorder in vicinal surfacesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/28685/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTAModelForDisorderInVicinalSurfaces_1991.pdf.txtAModelForDisorderInVicinalSurfaces_1991.pdf.txtExtracted texttext/plain21717https://repositorio.ufrn.br/bitstream/123456789/28685/3/AModelForDisorderInVicinalSurfaces_1991.pdf.txta166244b2773eff7692dcdd342b88536MD53THUMBNAILAModelForDisorderInVicinalSurfaces_1991.pdf.jpgAModelForDisorderInVicinalSurfaces_1991.pdf.jpgGenerated Thumbnailimage/jpeg1106https://repositorio.ufrn.br/bitstream/123456789/28685/4/AModelForDisorderInVicinalSurfaces_1991.pdf.jpgd2031c683a2900bfdb6277a5af627c7bMD54123456789/286852022-10-20 17:06:21.95oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2022-10-20T20:06:21Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv A model for disorder in vicinal surfaces
title A model for disorder in vicinal surfaces
spellingShingle A model for disorder in vicinal surfaces
Carriço, Artur da Silva
Disorder
Vicinal surface
title_short A model for disorder in vicinal surfaces
title_full A model for disorder in vicinal surfaces
title_fullStr A model for disorder in vicinal surfaces
title_full_unstemmed A model for disorder in vicinal surfaces
title_sort A model for disorder in vicinal surfaces
author Carriço, Artur da Silva
author_facet Carriço, Artur da Silva
author_role author
dc.contributor.author.fl_str_mv Carriço, Artur da Silva
dc.subject.por.fl_str_mv Disorder
Vicinal surface
topic Disorder
Vicinal surface
description The average spectrum of a disordered f.c.c. vicinal surface is obtained from effective medium Green's function. The disorder is restricted to the surface plane and the scattering in the surface is treated in the Coherent Potential Approximation. The method applies to site-diagonal disorder and is valid for any crystallographic orientation. An application is made for an s-like Tight-Binding Hamiltonian with substitutional disorder. Depending on the strength of the perturbation potential, resonances or local bands are found in the surface spectrum.
publishDate 1991
dc.date.issued.fl_str_mv 1991
dc.date.accessioned.fl_str_mv 2020-03-30T19:35:45Z
dc.date.available.fl_str_mv 2020-03-30T19:35:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv CARRIÇO, Artur da Silva. A model for disorder in vicinal surfaces. Physica Scripta, v. 44, p. 384-387, 1991.ISSN 1402-4896. DOI: https://doi.org/10.1088/0031-8949/44/4/014. Disponível em: https://iopscience.iop.org/article/10.1088/0031-8949/44/4/014. Acesso em: 30 mar. 2020.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/28685
dc.identifier.doi.none.fl_str_mv https://doi.org/10.1088/0031-8949/44/4/014
identifier_str_mv CARRIÇO, Artur da Silva. A model for disorder in vicinal surfaces. Physica Scripta, v. 44, p. 384-387, 1991.ISSN 1402-4896. DOI: https://doi.org/10.1088/0031-8949/44/4/014. Disponível em: https://iopscience.iop.org/article/10.1088/0031-8949/44/4/014. Acesso em: 30 mar. 2020.
url https://repositorio.ufrn.br/jspui/handle/123456789/28685
https://doi.org/10.1088/0031-8949/44/4/014
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv IOP Publishing Ltda
publisher.none.fl_str_mv IOP Publishing Ltda
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
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