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dc.contributor.author
Belletti, Gustavo Daniel  
dc.contributor.author
Dalosto, Sergio Daniel  
dc.contributor.author
Tinte, Silvia Noemi  
dc.date.available
2017-12-04T17:31:50Z  
dc.date.issued
2016-09  
dc.identifier.citation
Belletti, Gustavo Daniel; Dalosto, Sergio Daniel; Tinte, Silvia Noemi; Ferroelectric surface induced electron doping in zigzag graphene nanoribbon; IOP Publishing; Journal of Physics: Condensed Matter; 28; 43; 9-2016; 435002-  
dc.identifier.issn
0953-8984  
dc.identifier.uri
http://hdl.handle.net/11336/29578  
dc.description.abstract
The interface between a zigzag graphene nanoribbon (zGNR) and the ferroelectric PbTiO3 (001) surface is studied through first-principles calculations. We investigate how the electric polarization normal to the surface tunes the zGNR electronic and magnetic properties. A ferroelectric single-domain configuration with polarization up and down is considered including explicitly a bottom metallic electrode. Our results show how not only the ferroelectric polarization direction determines the doping in zGNR-the downward polarization induces a p-type doping in a planar zGNR whereas the upward polarization keeps it intrinsic- but also the features of the clean ferroelectric surface, such as the atomic relaxation and the electronic distribution. Interestingly, the surface ferroelectric polarization, besides tuning the carrier type as it does in graphene, also closes the zGNR band gap which can be understood in terms of the weakening of the local magnetic moment of the edge carbon atoms as the polarization increases. The zGNR antiferromagnetic ground state is preserved without breaking the α-β degeneracy.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
IOP Publishing  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Graphene Nanoriboons  
dc.subject
Ferroelectrics  
dc.subject
Interface  
dc.subject
First-Principles  
dc.subject.classification
Astronomía  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Ferroelectric surface induced electron doping in zigzag graphene nanoribbon  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-10-13T19:53:33Z  
dc.journal.volume
28  
dc.journal.number
43  
dc.journal.pagination
435002-  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Belletti, Gustavo Daniel. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Electroquímica Aplicada e Ingeniería Electroquímica; Argentina  
dc.description.fil
Fil: Dalosto, Sergio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina  
dc.description.fil
Fil: Tinte, Silvia Noemi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina  
dc.journal.title
Journal of Physics: Condensed Matter  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0953-8984/28/43/435002  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/28/43/435002/meta