Electronic transport across linear defects in graphene

Detalhes bibliográficos
Autor(a) principal: Páez, C. J.
Data de Publicação: 2015
Outros Autores: Rodrigues, J. N. B., Pereira, A. L. C., Peres, N. M. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/39052
Resumo: We investigate the low-energy electronic transport across grain boundaries in graphene ribbons and infinite flakes. Using the recursive Green’s function method, we calculate the electronic transmission across different types of grain boundaries in graphene ribbons. We show results for the charge density distribution and the current flow along the ribbon. We study linear defects at various angles with the ribbon direction, as well as overlaps of two monolayer ribbon domains forming a bilayer region. For a class of extended defect lines with periodicity 3, an analytic approach is developed to study transport in infinite flakes. This class of extended grain boundaries is particularly interesting, since the K and K0 Dirac points are superposed.
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spelling Electronic transport across linear defects in grapheneGraphene2D MaterialsCiências Naturais::Ciências FísicasScience & TechnologyWe investigate the low-energy electronic transport across grain boundaries in graphene ribbons and infinite flakes. Using the recursive Green’s function method, we calculate the electronic transmission across different types of grain boundaries in graphene ribbons. We show results for the charge density distribution and the current flow along the ribbon. We study linear defects at various angles with the ribbon direction, as well as overlaps of two monolayer ribbon domains forming a bilayer region. For a class of extended defect lines with periodicity 3, an analytic approach is developed to study transport in infinite flakes. This class of extended grain boundaries is particularly interesting, since the K and K0 Dirac points are superposed.NMRP acknowledges support from EC under Graphene Flagship (Contract No. CNECT-ICT-604391) and the hospitality of the Instituto de Física of the UFRJ, where this work was completed. JNBR acknowledges Singapore National Research Foundation for its support through the Fellowship Program NRFNRFF2012-01. CJP and ALCP acknowledge So Paulo Research Foundation (FAPESP), grant 2012/19060-0. Part of the numerical simulations were performed at the computational facilities from CENAPAD-SP, at Campinas State University.American Physical SocietyUniversidade do MinhoPáez, C. J.Rodrigues, J. N. B.Pereira, A. L. C.Peres, N. M. R.2015-04-032015-04-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/39052engPaez, C. J., Pereira, A. L. C., Rodrigues, J. N. B., & Peres, N. M. R. (2015). Electronic transport across linear defects in graphene. Physical Review B, 92(4). doi: 10.1103/PhysRevB.92.0454261098-01211550-235X10.1103/PhysRevB.92.045426info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T07:08:50Zoai:repositorium.sdum.uminho.pt:1822/39052Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T07:08:50Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Electronic transport across linear defects in graphene
title Electronic transport across linear defects in graphene
spellingShingle Electronic transport across linear defects in graphene
Páez, C. J.
Graphene
2D Materials
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Electronic transport across linear defects in graphene
title_full Electronic transport across linear defects in graphene
title_fullStr Electronic transport across linear defects in graphene
title_full_unstemmed Electronic transport across linear defects in graphene
title_sort Electronic transport across linear defects in graphene
author Páez, C. J.
author_facet Páez, C. J.
Rodrigues, J. N. B.
Pereira, A. L. C.
Peres, N. M. R.
author_role author
author2 Rodrigues, J. N. B.
Pereira, A. L. C.
Peres, N. M. R.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Páez, C. J.
Rodrigues, J. N. B.
Pereira, A. L. C.
Peres, N. M. R.
dc.subject.por.fl_str_mv Graphene
2D Materials
Ciências Naturais::Ciências Físicas
Science & Technology
topic Graphene
2D Materials
Ciências Naturais::Ciências Físicas
Science & Technology
description We investigate the low-energy electronic transport across grain boundaries in graphene ribbons and infinite flakes. Using the recursive Green’s function method, we calculate the electronic transmission across different types of grain boundaries in graphene ribbons. We show results for the charge density distribution and the current flow along the ribbon. We study linear defects at various angles with the ribbon direction, as well as overlaps of two monolayer ribbon domains forming a bilayer region. For a class of extended defect lines with periodicity 3, an analytic approach is developed to study transport in infinite flakes. This class of extended grain boundaries is particularly interesting, since the K and K0 Dirac points are superposed.
publishDate 2015
dc.date.none.fl_str_mv 2015-04-03
2015-04-03T00:00:00Z
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.uri.fl_str_mv http://hdl.handle.net/1822/39052
url http://hdl.handle.net/1822/39052
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Paez, C. J., Pereira, A. L. C., Rodrigues, J. N. B., & Peres, N. M. R. (2015). Electronic transport across linear defects in graphene. Physical Review B, 92(4). doi: 10.1103/PhysRevB.92.045426
1098-0121
1550-235X
10.1103/PhysRevB.92.045426
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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