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dc.contributor.author
Ojeda Collado, Hector Pablo
dc.contributor.author
Usaj, Gonzalo
dc.contributor.author
Balseiro, Carlos Antonio
dc.date.available
2018-03-19T16:41:47Z
dc.date.issued
2015-01-28
dc.identifier.citation
Ojeda Collado, Hector Pablo; Usaj, Gonzalo; Balseiro, Carlos Antonio; Impurities and electronic localization in graphene bilayers; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 91; 2015; 28-1-2015; 045435-1 / 045435-7
dc.identifier.issn
1098-0121
dc.identifier.uri
http://hdl.handle.net/11336/39208
dc.description.abstract
We analyze the electronic properties of bilayer graphene with Bernal stacking and a low concentration of adatoms. Assuming that the host bilayer lies on top of a substrate, we consider the case where impurities are adsorbed only on the upper layer. We describe nonmagnetic impurities as a single orbital hybridized with carbon's pz states. The effect of impurity doping on the local density of states with and without a gated electric field perpendicular to the layers is analyzed. We look for Anderson localization in the different regimes and estimate the localization length. In the biased system, the field-induced gap is partially filled by strongly localized impurity states. Interestingly, the structure, distribution, and localization length of these states depend on the field polarization.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Quantum Transport
dc.subject
Graphene
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Localization
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Adatoms
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Impurities and electronic localization in graphene bilayers
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-02-28T14:29:38Z
dc.journal.volume
91
dc.journal.number
2015
dc.journal.pagination
045435-1 / 045435-7
dc.journal.pais
Estados Unidos
dc.journal.ciudad
New York
dc.description.fil
Fil: Ojeda Collado, Hector Pablo. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
dc.description.fil
Fil: Usaj, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
dc.description.fil
Fil: Balseiro, Carlos Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche); Argentina
dc.journal.title
Physical Review B: Condensed Matter and Materials Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevB.91.045435
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.91.045435
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