English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/218805
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

Nonlocal spin dynamics in the crossover from diffusive to ballistic transport

AuthorsVila, Marc ; Garcia, Jose H. ; Cummings, Aron W.; Power, Stephen R. ; Groth, Christoph W.; Waintal, X.; Roche, Stephan
Issue Date2020
PublisherAmerican Physical Society
CitationPhysical Review Letters 124(19): 196602 (2020)
AbstractImproved fabrication techniques have enabled the possibility of ballistic transport and unprecedented spin manipulation in ultraclean graphene devices. Spin transport in graphene is typically probed in a nonlocal spin valve and is analyzed using spin diffusion theory, but this theory is not necessarily applicable when charge transport becomes ballistic or when the spin diffusion length is exceptionally long. Here, we study these regimes by performing quantum simulations of graphene nonlocal spin valves. We find that conventional spin diffusion theory fails to capture the crossover to the ballistic regime as well as the limit of long spin diffusion length. We show that the latter can be described by an extension of the current theoretical framework. Finally, by covering the whole range of spin dynamics, our study opens a new perspective to predict and scrutinize spin transport in graphene and other two-dimensional material-based ultraclean devices.
Publisher version (URL)https://doi.org/10.1103/PhysRevLett.124.196602
URIhttp://hdl.handle.net/10261/218805
DOIhttp://dx.doi.org/10.1103/PhysRevLett.124.196602
ISSN0031-9007
E-ISSN1079-7114
Appears in Collections:(CIN2) Artículos
Files in This Item:
File Description SizeFormat 
nonlocaltrans.pdf693,55 kBAdobe 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.