The role of carbon contamination in metallic nanowires

Detalhes bibliográficos
Autor(a) principal: Galvão,Douglas Soares
Data de Publicação: 2004
Outros Autores: Rodrigues,Varlei, Ugarte,Daniel, Legoas,Sergio Benites
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200020
Resumo: Metallic nanowires have attracted much attention in the last years due to new phenomena such as quantum conductance and the existence of unexpected long interatomic distances attaining 0.3-0.5 nm. These large distances represented a challenge for physical interpretation. In this work we present experimental data from high-resolution transmission electron microscopy and results from ab initio calculations for suspended gold chains and show that these large distances can be easily explained by the presence of carbon atoms as contaminants. In principle the present conclusions can be also applied to other metallic nanowires (such as Ag and Pt) whose structures also present large interatomic distances.
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spelling The role of carbon contamination in metallic nanowiresgold nanowiresquantum conductancecarbon contaminationMetallic nanowires have attracted much attention in the last years due to new phenomena such as quantum conductance and the existence of unexpected long interatomic distances attaining 0.3-0.5 nm. These large distances represented a challenge for physical interpretation. In this work we present experimental data from high-resolution transmission electron microscopy and results from ab initio calculations for suspended gold chains and show that these large distances can be easily explained by the presence of carbon atoms as contaminants. In principle the present conclusions can be also applied to other metallic nanowires (such as Ag and Pt) whose structures also present large interatomic distances.ABM, ABC, ABPol2004-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200020Materials Research v.7 n.2 2004reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392004000200020info:eu-repo/semantics/openAccessGalvão,Douglas SoaresRodrigues,VarleiUgarte,DanielLegoas,Sergio Beniteseng2004-06-29T00:00:00Zoai:scielo:S1516-14392004000200020Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2004-06-29T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv The role of carbon contamination in metallic nanowires
title The role of carbon contamination in metallic nanowires
spellingShingle The role of carbon contamination in metallic nanowires
Galvão,Douglas Soares
gold nanowires
quantum conductance
carbon contamination
title_short The role of carbon contamination in metallic nanowires
title_full The role of carbon contamination in metallic nanowires
title_fullStr The role of carbon contamination in metallic nanowires
title_full_unstemmed The role of carbon contamination in metallic nanowires
title_sort The role of carbon contamination in metallic nanowires
author Galvão,Douglas Soares
author_facet Galvão,Douglas Soares
Rodrigues,Varlei
Ugarte,Daniel
Legoas,Sergio Benites
author_role author
author2 Rodrigues,Varlei
Ugarte,Daniel
Legoas,Sergio Benites
author2_role author
author
author
dc.contributor.author.fl_str_mv Galvão,Douglas Soares
Rodrigues,Varlei
Ugarte,Daniel
Legoas,Sergio Benites
dc.subject.por.fl_str_mv gold nanowires
quantum conductance
carbon contamination
topic gold nanowires
quantum conductance
carbon contamination
description Metallic nanowires have attracted much attention in the last years due to new phenomena such as quantum conductance and the existence of unexpected long interatomic distances attaining 0.3-0.5 nm. These large distances represented a challenge for physical interpretation. In this work we present experimental data from high-resolution transmission electron microscopy and results from ab initio calculations for suspended gold chains and show that these large distances can be easily explained by the presence of carbon atoms as contaminants. In principle the present conclusions can be also applied to other metallic nanowires (such as Ag and Pt) whose structures also present large interatomic distances.
publishDate 2004
dc.date.none.fl_str_mv 2004-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200020
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000200020
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392004000200020
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.7 n.2 2004
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212657716527104

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