Orbital symmetry fingerprints for magnetic adatoms in graphene

Detalhes bibliográficos
Autor(a) principal: Uchoa, Bruno
Data de Publicação: 2014
Outros Autores: Yang, Ling, Tsai, S-W, Peres, N. M. R., Castro Neto, A. H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/61488
Resumo: In this paper, we describe the formation of local resonances in graphene in the presence of magnetic adatoms containing localized orbitals of arbitrary symmetry, corresponding to any given angular momentum state. We show that quantum interference effects which are naturally inbuilt in the honeycomb lattice in combination with the specific orbital symmetry of the localized state lead to the formation of fingerprints in differential conductance curves. In the presence of Jahn-Teller distortion effects, which lift the orbital degeneracy of the adatoms, the orbital symmetries can lead to distinctive signatures in the local density of states. We show that those effects allow scanning tunneling probes to characterize adatoms and defects in graphene.
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spelling Orbital symmetry fingerprints for magnetic adatoms in grapheneCiências Naturais::Ciências FísicasScience & TechnologyIn this paper, we describe the formation of local resonances in graphene in the presence of magnetic adatoms containing localized orbitals of arbitrary symmetry, corresponding to any given angular momentum state. We show that quantum interference effects which are naturally inbuilt in the honeycomb lattice in combination with the specific orbital symmetry of the localized state lead to the formation of fingerprints in differential conductance curves. In the presence of Jahn-Teller distortion effects, which lift the orbital degeneracy of the adatoms, the orbital symmetries can lead to distinctive signatures in the local density of states. We show that those effects allow scanning tunneling probes to characterize adatoms and defects in graphene.We acknowledge P M Goldbart, E Andrei, H Manoharan, A Balatsky, K Sengupta and M Vojta for discussions. BU acknowledges partial support from DOI grant DE-FG02-07ER46453 at the University of Illinois. LY and SWT acknowledge financial support from NSF under grant DMR0847801 and from the UC-Lab FRP under award number 09-LR-05-118602. AHCN acknowledges DOE grant DE-FG02-08ER46512 and NRF-CRP award 'Novel 2D materials with tailored properties beyond graphene' (R-144-000-295-281).IOP PublishingUniversidade do MinhoUchoa, BrunoYang, LingTsai, S-WPeres, N. M. R.Castro Neto, A. H.20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/61488eng1367-263010.1088/1367-2630/16/1/013045info: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:RCAAP2023-07-21T12:30:30Zoai:repositorium.sdum.uminho.pt:1822/61488Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:25:41.463410Repositório 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 Orbital symmetry fingerprints for magnetic adatoms in graphene
title Orbital symmetry fingerprints for magnetic adatoms in graphene
spellingShingle Orbital symmetry fingerprints for magnetic adatoms in graphene
Uchoa, Bruno
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Orbital symmetry fingerprints for magnetic adatoms in graphene
title_full Orbital symmetry fingerprints for magnetic adatoms in graphene
title_fullStr Orbital symmetry fingerprints for magnetic adatoms in graphene
title_full_unstemmed Orbital symmetry fingerprints for magnetic adatoms in graphene
title_sort Orbital symmetry fingerprints for magnetic adatoms in graphene
author Uchoa, Bruno
author_facet Uchoa, Bruno
Yang, Ling
Tsai, S-W
Peres, N. M. R.
Castro Neto, A. H.
author_role author
author2 Yang, Ling
Tsai, S-W
Peres, N. M. R.
Castro Neto, A. H.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Uchoa, Bruno
Yang, Ling
Tsai, S-W
Peres, N. M. R.
Castro Neto, A. H.
dc.subject.por.fl_str_mv Ciências Naturais::Ciências Físicas
Science & Technology
topic Ciências Naturais::Ciências Físicas
Science & Technology
description In this paper, we describe the formation of local resonances in graphene in the presence of magnetic adatoms containing localized orbitals of arbitrary symmetry, corresponding to any given angular momentum state. We show that quantum interference effects which are naturally inbuilt in the honeycomb lattice in combination with the specific orbital symmetry of the localized state lead to the formation of fingerprints in differential conductance curves. In the presence of Jahn-Teller distortion effects, which lift the orbital degeneracy of the adatoms, the orbital symmetries can lead to distinctive signatures in the local density of states. We show that those effects allow scanning tunneling probes to characterize adatoms and defects in graphene.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
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/1822/61488
url http://hdl.handle.net/1822/61488
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1367-2630
10.1088/1367-2630/16/1/013045
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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
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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
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