English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/211319
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Interface effects in hybrid hBN-graphene nanoribbons

AuthorsLeon, Carlos; Costa, Marcio; Chico, Leonor ; Latgé, Andrea
KeywordsElectronic properties
hybrid graphene-BN nanoribbon
Issue Date2019
PublisherSpringer Nature
CitationScientific Reports 9 (2019)
Abstract[EN] We analyze the electronic properties of a hybrid graphene-BN nanoribbon system, using a Hubbard model Hamiltonian within a mean field approximation. Due to the different electronegativities of the boron and nitrogen atoms, an electric field is induced across the zigzag graphene strip, breaking the spin degeneracy of the electronic band structure. Optimal tight-binding parameters are found from first-principles calculations. Edge potentials are proposed as corrections for the on-site energies, modeling the BN-graphene nanoribbon interfaces. We show that half-metallic responses in the hybrid systems may be driven with the help of an external electric field. We also study the role of defects across the graphene nanoribbon and at the h-BN/graphene interface regions. Modulations on the spin-dependent gaps may be achieved depending on the nature and position of the defect, constituting a way towards spin-gap engineering by means of spatial doping.
Publisher version (URL)http://dx.doi.org/10.1038/s41598-019-39763-5
Identifiersdoi: 10.1038/s41598-019-39763-5
e-issn: 2045-2322
Appears in Collections:(ICMM) Artículos
Files in This Item:
File Description SizeFormat 
Leon_Interface_Sci_Reports_s41598-019-39763-5.pdf2,08 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.