Long Spin Diffusion Length in Few-Layer Graphene Flakes
Loading...
Access rights
openAccess
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
Series
Physical Review Letters, Volume 117, issue 14, pp. 1-6
Abstract
We report a spin valve with a few-layer graphene flake bridging highly spin-polarized La0.67Sr0.33MnO3 electrodes, whose surfaces are kept clean during lithographic definition. Sharp magnetic switching is verified using photoemission electron microscopy with x-ray magnetic circular dichroism contrast. A naturally occurring high interfacial resistance ∼12 MΩ facilitates spin injection, and a large resistive switching (0.8 MΩ at 10 K) implies a 70-130 μm spin diffusion length that exceeds previous values obtained with sharp-switching electrodes.Description
Keywords
Other note
Citation
Yan, W, Phillips, L C, Barbone, M, Hämäläinen, S J, Lombardo, A, Ghidini, M, Moya, X, MacCherozzi, F, Van Dijken, S, Dhesi, S S, Ferrari, A C & Mathur, N D 2016, 'Long Spin Diffusion Length in Few-Layer Graphene Flakes', Physical Review Letters, vol. 117, no. 14, 147201, pp. 1-6. https://doi.org/10.1103/PhysRevLett.117.147201