With the aim of better understanding recent experimental results, we performed density functional theory calculations (DFT), including van der Waals interactions, on bilayer graphene over a Ru(0001) surface. Two stacking sequences (AB and AA) for bilayer graphene were considered and compared with mo...

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Tipo de recurso:
Fecha de publicación:
2015
Institución:
Universidad de Medellín
Repositorio:
Repositorio UDEM
Idioma:
eng
OAI Identifier:
oai:repository.udem.edu.co:11407/1373
Acceso en línea:
http://hdl.handle.net/11407/1373
Palabra clave:
Bilayer grapheme
Ru(0001)
STM
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restrictedAccess
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http://purl.org/coar/access_right/c_16ec
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spelling 2015-10-09T13:17:53Z2015-10-09T13:17:53Z2015396028http://hdl.handle.net/11407/137310.1016/j.susc.2014.10.010With the aim of better understanding recent experimental results, we performed density functional theory calculations (DFT), including van der Waals interactions, on bilayer graphene over a Ru(0001) surface. Two stacking sequences (AB and AA) for bilayer graphene were considered and compared with monolayer graphene. For each case relaxed atomic positions, calculated STM images and density of states were obtained and these are discussed in detail. Our results suggest that moiré patterns of graphene over a Ru(0001) surface have a remarkable electronic influence, whose origin is the coupling of graphene layers and the Ru(0001) surface. Additionally, we found that atomic lattice observed by STM on such moiré patterns is related with stacking sequence of bilayer graphene.engElsevierhttp://www.sciencedirect.com/science/article/pii/S0039602814003008Surface Science, abril de 2015, volume 634, pp 31-36ScopusArticleinfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/restrictedAccesshttp://purl.org/coar/access_right/c_16ecDepartamento de Física, Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, ChileDepartamento de Ciencias Físicas, Universidad de la Frontera, Casilla 54 D, Temuco, ChileDepartamento de Ciencias Básicas, Universidad de Medellín, Medellín, ColombiaKroeger D.A.Cisternas E.Correa J.D.Bilayer graphemeRu(0001)STMBilayer graphene films over Ru(0001) surface: Ab-initio calculations and STM images simulation11407/1373oai:repository.udem.edu.co:11407/13732020-05-27 15:55:12.529Repositorio Institucional Universidad de Medellinrepositorio@udem.edu.co
dc.title.english.eng.fl_str_mv Bilayer graphene films over Ru(0001) surface: Ab-initio calculations and STM images simulation
dc.contributor.affiliation.spa.fl_str_mv Departamento de Física, Universidad Técnica Federico Santa María, Casilla 110-V, Valparaíso, Chile
Departamento de Ciencias Físicas, Universidad de la Frontera, Casilla 54 D, Temuco, Chile
Departamento de Ciencias Básicas, Universidad de Medellín, Medellín, Colombia
dc.subject.keyword.eng.fl_str_mv Bilayer grapheme
Ru(0001)
STM
topic Bilayer grapheme
Ru(0001)
STM
spellingShingle Bilayer grapheme
Ru(0001)
STM
description With the aim of better understanding recent experimental results, we performed density functional theory calculations (DFT), including van der Waals interactions, on bilayer graphene over a Ru(0001) surface. Two stacking sequences (AB and AA) for bilayer graphene were considered and compared with monolayer graphene. For each case relaxed atomic positions, calculated STM images and density of states were obtained and these are discussed in detail. Our results suggest that moiré patterns of graphene over a Ru(0001) surface have a remarkable electronic influence, whose origin is the coupling of graphene layers and the Ru(0001) surface. Additionally, we found that atomic lattice observed by STM on such moiré patterns is related with stacking sequence of bilayer graphene.
publishDate 2015
dc.date.accessioned.none.fl_str_mv 2015-10-09T13:17:53Z
dc.date.available.none.fl_str_mv 2015-10-09T13:17:53Z
dc.date.created.none.fl_str_mv 2015
dc.type.eng.fl_str_mv Article
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_6501
http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.identifier.issn.none.fl_str_mv 396028
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/11407/1373
dc.identifier.doi.none.fl_str_mv 10.1016/j.susc.2014.10.010
identifier_str_mv 396028
10.1016/j.susc.2014.10.010
url http://hdl.handle.net/11407/1373
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.isversionof.spa.fl_str_mv http://www.sciencedirect.com/science/article/pii/S0039602814003008
dc.relation.ispartofen.eng.fl_str_mv Surface Science, abril de 2015, volume 634, pp 31-36
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_16ec
dc.rights.accessrights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://purl.org/coar/access_right/c_16ec
dc.publisher.spa.fl_str_mv Elsevier
dc.source.spa.fl_str_mv Scopus
institution Universidad de Medellín
repository.name.fl_str_mv Repositorio Institucional Universidad de Medellin
repository.mail.fl_str_mv repositorio@udem.edu.co
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