Point defects on graphene on metals

Understanding the coupling of graphene with its local environment is critical to be able to integrate it in tomorrow’s electronic devices. Here we show how the presence of a metallic substrate affects the properties of an atomically tailored graphene layer. We have deliberately introduced single car...

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Authors: Ugeda, M. M., Fernández-Torre, D., Brihuega Álvarez, Iván, Pou Bell, Pablo, Martínez-Galera, A. J., Pérez Pérez, Rubén, Gómez Rodríguez, José María
Format: article
Publication Date:2011
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/668710
Online Access:http://hdl.handle.net/10486/668710
https://dx.doi.org/10.1103/PhysRevLett.107.116803
Access Level:Open access
Keyword:Física
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spelling Point defects on graphene on metalsUgeda, M. M.Fernández-Torre, D.Brihuega Álvarez, IvánPou Bell, PabloMartínez-Galera, A. J.Pérez Pérez, RubénGómez Rodríguez, José MaríaFísicaUnderstanding the coupling of graphene with its local environment is critical to be able to integrate it in tomorrow’s electronic devices. Here we show how the presence of a metallic substrate affects the properties of an atomically tailored graphene layer. We have deliberately introduced single carbon vacancies on a graphene monolayer grown on a Pt(111) surface and investigated its impact in the electronic, structural, and magnetic properties of the graphene layer. Our low temperature scanning tunneling microscopy studies, complemented by density functional theory, show the existence of a broad electronic resonance above the Fermi energy associated with the vacancies. Vacancy sites become reactive leading to an increase of the coupling between the graphene layer and the metal substrate at these points; this gives rise to a rapid decay of the localized state and the quenching of the magnetic moment associated with carbon vacancies in freestanding graphene layersThis work is supported by MAT2008-02929-NAN, MAT2010-14902, MAT2008-02939-E, CSD2010-00024 (MICINN, Spain), by PERG05-GA-2009-24209 (EU) and S2009/MAT-1467 (Comunidad de Madrid, Spain). I.B and P. P. were supported by the Ramón y Cajal program. Computer time provided by the Spanish Supercomputing Network (RES), and by the Centro de Supercomputación y Visualización de Madrid (CeSViMa)American Physical SocietyDepartamento de Física de la Materia CondensadaFacultad de Ciencias20112011-09-08research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/668710https://dx.doi.org/10.1103/PhysRevLett.107.116803reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6687102026-06-23T12:46:27Z
dc.title.none.fl_str_mv Point defects on graphene on metals
title Point defects on graphene on metals
spellingShingle Point defects on graphene on metals
Ugeda, M. M.
Física
title_short Point defects on graphene on metals
title_full Point defects on graphene on metals
title_fullStr Point defects on graphene on metals
title_full_unstemmed Point defects on graphene on metals
title_sort Point defects on graphene on metals
dc.creator.none.fl_str_mv Ugeda, M. M.
Fernández-Torre, D.
Brihuega Álvarez, Iván
Pou Bell, Pablo
Martínez-Galera, A. J.
Pérez Pérez, Rubén
Gómez Rodríguez, José María
author Ugeda, M. M.
author_facet Ugeda, M. M.
Fernández-Torre, D.
Brihuega Álvarez, Iván
Pou Bell, Pablo
Martínez-Galera, A. J.
Pérez Pérez, Rubén
Gómez Rodríguez, José María
author_role author
author2 Fernández-Torre, D.
Brihuega Álvarez, Iván
Pou Bell, Pablo
Martínez-Galera, A. J.
Pérez Pérez, Rubén
Gómez Rodríguez, José María
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física de la Materia Condensada
Facultad de Ciencias
dc.subject.none.fl_str_mv Física
topic Física
description Understanding the coupling of graphene with its local environment is critical to be able to integrate it in tomorrow’s electronic devices. Here we show how the presence of a metallic substrate affects the properties of an atomically tailored graphene layer. We have deliberately introduced single carbon vacancies on a graphene monolayer grown on a Pt(111) surface and investigated its impact in the electronic, structural, and magnetic properties of the graphene layer. Our low temperature scanning tunneling microscopy studies, complemented by density functional theory, show the existence of a broad electronic resonance above the Fermi energy associated with the vacancies. Vacancy sites become reactive leading to an increase of the coupling between the graphene layer and the metal substrate at these points; this gives rise to a rapid decay of the localized state and the quenching of the magnetic moment associated with carbon vacancies in freestanding graphene layers
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-09-08
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/668710
https://dx.doi.org/10.1103/PhysRevLett.107.116803
url http://hdl.handle.net/10486/668710
https://dx.doi.org/10.1103/PhysRevLett.107.116803
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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