WENJING YAN WENJING.YAN@NOTTINGHAM.AC.UK
Anne Mclaren Research Fellowship
Long Spin Diffusion Length in Few-Layer Graphene Flakes
Yan, W.; Phillips, L.?C.; Barbone, M.; H�m�l�inen, S.?J.; Lombardo, A.; Ghidini, M.; Moya, X.; Maccherozzi, F.; van Dijken, S.; Dhesi, S.?S.; Ferrari, A.?C.; Mathur, N.?D.
Authors
L.?C. Phillips
M. Barbone
S.?J. H�m�l�inen
A. Lombardo
M. Ghidini
X. Moya
F. Maccherozzi
S. van Dijken
S.?S. Dhesi
A.?C. Ferrari
N.?D. Mathur
Abstract
© 2016 American Physical Society. 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.
Citation
Yan, W., Phillips, L., Barbone, M., Hämäläinen, S., Lombardo, A., Ghidini, M., …Mathur, N. (2016). Long Spin Diffusion Length in Few-Layer Graphene Flakes. Physical Review Letters, 117(14), https://doi.org/10.1103/physrevlett.117.147201
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 29, 2016 |
Online Publication Date | Sep 27, 2016 |
Publication Date | Sep 27, 2016 |
Deposit Date | Nov 14, 2019 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Electronic ISSN | 1079-7114 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 117 |
Issue | 14 |
DOI | https://doi.org/10.1103/physrevlett.117.147201 |
Public URL | https://nottingham-repository.worktribe.com/output/3085772 |
Publisher URL | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.147201 |
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