Sublattice imbalance of substitutionally doped nitrogen in graphene
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/29445 |
Resumo: | Motivated by the recently observed sublattice asymmetry of substitutional nitrogen impurities in CVD grown graphene, we show, in a mathematically transparent manner, that oscillations in the local density of states driven by the presence of substitutional impurities are responsible for breaking the sublattice symmetry. While these oscillations are normally averaged out in the case of randomly dispersed impurities, in graphene they have either the same, or very nearly the same, periodicity as the lattice. As a result, the total interaction energy of randomly distributed impurities embedded in the conduction-electron-filled medium does not vanish and is lowered when their configuration is sublattice-asymmetric. We also identify the presence of a critical concentration of nitrogen above which one should expect the sublattice asymmetry to disappear. This feature is not particular to nitrogen dopants, but should be present in other impurities |
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Lawlor, James A.Gorman, Paul D.Power, Stephen R.Bezerra, Claudionor GomesFerreira, Mauro S.2020-07-03T18:34:23Z2020-07-03T18:34:23Z2014-10LAWLOR, J.A.; GORMAN, P. D.; POWER, S. R.; BEZERRA, C.G.; FERREIRA, M. S.. Sublattice imbalance of substitutionally doped nitrogen in graphene. Carbon (New York), v. 77, p. 645, 2014. Disponível em: https://www.sciencedirect.com/science/article/pii/S0008622314005235?via%3Dihub. Acesso em:03 jul.2020. https://doi.org/10.1016/j.carbon.2014.05.069.0008-6223https://repositorio.ufrn.br/jspui/handle/123456789/2944510.1016/j.carbon.2014.05.069ElsevierNitrogen impuritiesSublatticeNitrogen impuritiesSublattice imbalance of substitutionally doped nitrogen in grapheneinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleMotivated by the recently observed sublattice asymmetry of substitutional nitrogen impurities in CVD grown graphene, we show, in a mathematically transparent manner, that oscillations in the local density of states driven by the presence of substitutional impurities are responsible for breaking the sublattice symmetry. While these oscillations are normally averaged out in the case of randomly dispersed impurities, in graphene they have either the same, or very nearly the same, periodicity as the lattice. As a result, the total interaction energy of randomly distributed impurities embedded in the conduction-electron-filled medium does not vanish and is lowered when their configuration is sublattice-asymmetric. We also identify the presence of a critical concentration of nitrogen above which one should expect the sublattice asymmetry to disappear. This feature is not particular to nitrogen dopants, but should be present in other impuritiesengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/29445/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29445/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTSublatticeImbalanceSubstitutionallyDoped_bezerra_2014.pdf.txtSublatticeImbalanceSubstitutionallyDoped_bezerra_2014.pdf.txtExtracted texttext/plain28683https://repositorio.ufrn.br/bitstream/123456789/29445/4/SublatticeImbalanceSubstitutionallyDoped_bezerra_2014.pdf.txte955869512c95f264fa8d5761a4df11aMD54THUMBNAILSublatticeImbalanceSubstitutionallyDoped_bezerra_2014.pdf.jpgSublatticeImbalanceSubstitutionallyDoped_bezerra_2014.pdf.jpgGenerated Thumbnailimage/jpeg1714https://repositorio.ufrn.br/bitstream/123456789/29445/5/SublatticeImbalanceSubstitutionallyDoped_bezerra_2014.pdf.jpg772bd8cce666d9b52d5db59301df9484MD55123456789/294452023-01-30 18:57:44.852oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2023-01-30T21:57:44Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
title |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
spellingShingle |
Sublattice imbalance of substitutionally doped nitrogen in graphene Lawlor, James A. Nitrogen impurities Sublattice Nitrogen impurities |
title_short |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
title_full |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
title_fullStr |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
title_full_unstemmed |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
title_sort |
Sublattice imbalance of substitutionally doped nitrogen in graphene |
author |
Lawlor, James A. |
author_facet |
Lawlor, James A. Gorman, Paul D. Power, Stephen R. Bezerra, Claudionor Gomes Ferreira, Mauro S. |
author_role |
author |
author2 |
Gorman, Paul D. Power, Stephen R. Bezerra, Claudionor Gomes Ferreira, Mauro S. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Lawlor, James A. Gorman, Paul D. Power, Stephen R. Bezerra, Claudionor Gomes Ferreira, Mauro S. |
dc.subject.por.fl_str_mv |
Nitrogen impurities Sublattice Nitrogen impurities |
topic |
Nitrogen impurities Sublattice Nitrogen impurities |
description |
Motivated by the recently observed sublattice asymmetry of substitutional nitrogen impurities in CVD grown graphene, we show, in a mathematically transparent manner, that oscillations in the local density of states driven by the presence of substitutional impurities are responsible for breaking the sublattice symmetry. While these oscillations are normally averaged out in the case of randomly dispersed impurities, in graphene they have either the same, or very nearly the same, periodicity as the lattice. As a result, the total interaction energy of randomly distributed impurities embedded in the conduction-electron-filled medium does not vanish and is lowered when their configuration is sublattice-asymmetric. We also identify the presence of a critical concentration of nitrogen above which one should expect the sublattice asymmetry to disappear. This feature is not particular to nitrogen dopants, but should be present in other impurities |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-10 |
dc.date.accessioned.fl_str_mv |
2020-07-03T18:34:23Z |
dc.date.available.fl_str_mv |
2020-07-03T18:34:23Z |
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.citation.fl_str_mv |
LAWLOR, J.A.; GORMAN, P. D.; POWER, S. R.; BEZERRA, C.G.; FERREIRA, M. S.. Sublattice imbalance of substitutionally doped nitrogen in graphene. Carbon (New York), v. 77, p. 645, 2014. Disponível em: https://www.sciencedirect.com/science/article/pii/S0008622314005235?via%3Dihub. Acesso em:03 jul.2020. https://doi.org/10.1016/j.carbon.2014.05.069. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/29445 |
dc.identifier.issn.none.fl_str_mv |
0008-6223 |
dc.identifier.doi.none.fl_str_mv |
10.1016/j.carbon.2014.05.069 |
identifier_str_mv |
LAWLOR, J.A.; GORMAN, P. D.; POWER, S. R.; BEZERRA, C.G.; FERREIRA, M. S.. Sublattice imbalance of substitutionally doped nitrogen in graphene. Carbon (New York), v. 77, p. 645, 2014. Disponível em: https://www.sciencedirect.com/science/article/pii/S0008622314005235?via%3Dihub. Acesso em:03 jul.2020. https://doi.org/10.1016/j.carbon.2014.05.069. 0008-6223 10.1016/j.carbon.2014.05.069 |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/29445 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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Universidade Federal do Rio Grande do Norte (UFRN) |
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UFRN |
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UFRN |
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Repositório Institucional da UFRN |
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