Electronic properties of curved few-layers graphene : a geometrical approach.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorCariglia, Marco-
Autor(es): dc.creatorGiambò, Roberto-
Autor(es): dc.creatorPerali, Andrea-
Data de aceite: dc.date.accessioned2025-08-21T15:21:29Z-
Data de disponibilização: dc.date.available2025-08-21T15:21:29Z-
Data de envio: dc.date.issued2018-10-28-
Data de envio: dc.date.issued2018-10-28-
Data de envio: dc.date.issued2018-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/10471-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1011684-
Descrição: dc.descriptionWe show the presence of non-relativistic Lévy-Leblond fermions in flat three- and four-layers graphene with AB stacking, extending the results obtained in Cariglia et al. 2017 for bilayer graphene. When the layer is curved we obtain a set of equations for Galilean fermions that are a variation of those of Lévy-Leblond with a well defined combination of pseudospin, and that admit Lévy-Leblond spinors as solutions in an approriate limit. The local energy of such Galilean fermions is sensitive to the intrinsic curvature of the surface. We discuss the relationship between two-dimensional pseudospin, labelling layer degrees of freedom, and the different energy bands. For Lévy-Leblond fermions, an interpretation is given in terms of massless fermions in an effective 4D spacetime, and in this case the pseudospin is related to four dimensional chirality. A non-zero energy band gap between conduction and valence electronic bands is obtained for surfaces with positive curvature.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided that the original author and source are credited. Fonte: o próprio artigo.-
Palavras-chave: dc.subjectLévy-Leblond equations-
Palavras-chave: dc.subjectNon-relativistic fermions-
Palavras-chave: dc.subjectEisenhart lift-
Palavras-chave: dc.subjectCurved systems-
Título: dc.titleElectronic properties of curved few-layers graphene : a geometrical approach.-
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