TITLE

High spin injection polarization at an elevated dc bias in tunnel-junction-based lateral spin valves

AUTHOR(S)
Wang, X. J.; Zou, H.; Ocola, L. E.; Ji, Y.
PUB. DATE
July 2009
SOURCE
Applied Physics Letters;7/13/2009, Vol. 95 Issue 2, p022519
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Submicron metallic lateral spin valves are fabricated with AlOx tunnel junctions as spin injection and detection barriers. The spin polarization is estimated to be ∼20%, determined by both Hanle effect and variations of device dimensions. The polarization is maintained at a large dc injection current density >2×106 A/cm2. Both the spin polarization and spin diffusion length are weakly temperature dependent.
ACCESSION #
43277327

 

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