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Magnetic Field Effects on Charge and Current Density in Finite Monolayer Graphene

Efectos del campo magnético sobre la densidad de carga y la densidad de corriente en una monocapa de grafeno finita

dc.contributor.authorPáez González, Carlos José
dc.contributor.authorQuintero Orozco, Jorge Hernán
dc.contributor.authorGarcía Castro, Andrés Camilo
dc.date.accessioned2023-11-28T16:26:08Z
dc.date.available2023-11-28T16:26:08Z
dc.date.created2021-06-16
dc.identifier.issn1692-3324
dc.identifier.urihttp://hdl.handle.net/11407/8198
dc.descriptionIn this work, we study the effects of an external magnetic field on the charge and current density in finite monolayer graphene, i.e., with zig-zag and armchair edges. We use the tight-binding model to include the effects of the magnetic field and the effect of the edges. By using the transmisión probability and analyzing the local density of states (charge density) obtained from Green’s function method, we find an energy region where the wave functions are more localized in the edges and, consequently, the current flow across the borders. On the other hand, for energies close to Landau levels, the charge and current density are localized on the bulk of the system.eng
dc.descriptionEn este trabajo, estudiamos los efectos de un campo magnético externo sobre la densidad de carga y la densidad de corriente de una monocapa de grafeno finita, es decir, con bordes zig-zag y armchair. Usamos el modelo tight-binding para incluir los efectos del campo magnético y el efecto de los bordes. Utilizando la probabilidad de transmisión y analizando la densidad local de estados (densidad de carga), obtenidas por el método recursivo de las funciones de Green, encontramos que hay regiones de energía donde las funciones de onda están más localizadas en los bordes y, en consecuencia, la corriente fluye a través de estos. Por otro lado, para energías cercanas a los niveles de Landau, la carga y la corriente se localizan en mayor parte en el centro del sistema.spa
dc.formatPDF
dc.format.extentp. 251-261
dc.format.mediumElectrónico
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherUniversidad de Medellín
dc.relation.ispartofseriesRevista Ingenierías Universidad de Medellín; Vol. 20 No. 39 (2021)
dc.relation.haspartRevista Ingenierías Universidad de Medellín; Vol. 20 Núm. 39 julio-diciembre 2021
dc.relation.urihttps://revistas.udem.edu.co/index.php/ingenierias/article/view/3034
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0*
dc.sourceRevista Ingenierías Universidad de Medellín; Vol. 20 No. 39 (2021): (julio-diciembre); 251-261
dc.subjectGrapheneeng
dc.subjectMagnetic fieldeng
dc.subjectLocalizationeng
dc.subjectElectronic transporteng
dc.subject2D materialseng
dc.subjectGreen´s function methodseng
dc.subjectCharge densityeng
dc.subjectNano-electronics deviceseng
dc.subjectTight-binding modeleng
dc.subjectGrafenospa
dc.subjectCampo magnéticospa
dc.subjectLocalizaciónspa
dc.subjectTransporte electrónicospa
dc.subjectMateriales en 2Dspa
dc.subjectMétodo de la función de Greenspa
dc.subjectDensidad de cargaspa
dc.subjectDispositivos de nanoelectrónicosspa
dc.subjectModelo tight-bindingspa
dc.titleMagnetic Field Effects on Charge and Current Density in Finite Monolayer Grapheneeng
dc.titleEfectos del campo magnético sobre la densidad de carga y la densidad de corriente en una monocapa de grafeno finitaspa
dc.typearticle
dc.identifier.doihttps://doi.org/10.22395/rium.v20n39a14
dc.relation.citationvolume20
dc.relation.citationissue39
dc.relation.citationstartpage251
dc.relation.citationendpage261
dc.audienceComunidad Universidad de Medellín
dc.publisher.facultyFacultad de Ingenierías
dc.coverageLat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degreesLong: 075 36 00 W degrees minutes Long: -75.6000 decimal degrees
dc.publisher.placeMedellín
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dc.rights.creativecommonsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.identifier.eissn2248-4094
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.localArtículo científico
dc.type.driverinfo:eu-repo/semantics/article
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellín
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.instnameinstname:Universidad de Medellín


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