English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/177780
Share/Impact:
Statistics
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:

Title

Controlling the layer localization of gapless states in bilayer graphene with a gate voltage

AuthorsJaskólski, W.; Pelc, M. ; Bryant, Garnett W.; Chico, Leonor ; Ayuela, Andrés
Issue Date2018
PublisherInstitute of Physics Publishing
Citation2D Materials 5(2): 025006 (2018)
AbstractExperiments in gated bilayer graphene with stacking domain walls present topological gapless states protected by no-valley mixing. Here we research these states under gate voltages using atomistic models, which allow us to elucidate their origin. We find that the gate potential controls the layer localization of the two states, which switches non-trivially between layers depending on the applied gate voltage magnitude. We also show how these bilayer gapless states arise from bands of single-layer graphene by analyzing the formation of carbon bonds between layers. Based on this analysis we provide a model Hamiltonian with analytical solutions, which explains the layer localization as a function of the ratio between the applied potential and interlayer hopping. Our results open a route for the manipulation of gapless states in electronic devices, analogous to the proposed writing and reading memories in topological insulators.
Publisher version (URL)https://doi.org/10.1088/2053-1583/aaa490
URIhttp://hdl.handle.net/10261/177780
DOIhttp://dx.doi.org/10.1088/2053-1583/aaa490
Identifiersdoi: 10.1088/2053-1583/aaa490
e-issn: 2053-1583
Appears in Collections:(CFM) Artículos
(ICMM) Artículos
Files in This Item:
File Description SizeFormat 
gatevoltag.pdf2,29 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


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