English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/201036
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
Exportar a otros formatos:

Title

Spin communication over 30 µm long channels of chemical vapor deposited graphene on SiO2

AuthorsGebeyehu, Zewdu M. ; Parui, S.; Sierra, Juan F. ; Timmermans, Matias; Esplandiú, María J. ; Brems, S.; Huyghebaert, C.; Garello, Kevin ; Costache, Marius V. ; Valenzuela, Sergio O.
KeywordsGraphene
Spintronics
Spin devices
Issue Date2019
PublisherIOP Publishing
Citation2D Materials 6: 034003 (2019)
AbstractWe demonstrate a high-yield fabrication of non-local spin valve devices with room-temperature spin lifetimes of up to 3 ns and spin relaxation lengths as long as 9 µm in platinum-based chemical vapor deposition (Pt-CVD) synthesized single-layer graphene on SiO2/Si substrates. The spin-lifetime systematically presents a marked minimum at the charge neutrality point, as typically observed in pristine exfoliated graphene. However, by studying the carrier density dependence beyond n ~ 5  ×  1012 cm−2, via electrostatic gating, it is found that the spin lifetime reaches a maximum and then starts decreasing, a behavior that is reminiscent of that predicted when the spin-relaxation is driven by spin–orbit interaction. The spin lifetimes and relaxation lengths compare well with state-of-the-art results using exfoliated graphene on SiO2/Si, being a factor two-to-three larger than the best values reported at room temperature using the same substrate. As a result, the spin signal can be readily measured across 30 µm long graphene channels. These observations indicate that Pt-CVD graphene is a promising material for large-scale spin-based logic-in-memory applications.
Publisher version (URL)https://doi.org/10.1088/2053-1583/ab1874
URIhttp://hdl.handle.net/10261/201036
DOI10.1088/2053-1583/ab1874
E-ISSN2053-1583
Appears in Collections:(CIN2) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf59,24 kBAdobe PDFThumbnail
View/Open
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.