Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2007-06-19
Phys. Rev. B 76, 220410(R) (2007)
Physics
Condensed Matter
Strongly Correlated Electrons
10 pages, 3 figures
Scientific paper
10.1103/PhysRevB.76.220410
Magnetic tunnel junctions with a ferrimagnetic barrier layer have been studied to understand the role of the barrier layer in the tunneling process - a factor that has been largely overlooked until recently. Epitaxial oxide junctions of highly spin polarized La0.7Sr0.3MnO3 and Fe3O4 electrodes with magnetic NiMn2O4 (NMO) insulating barrier layers provide a magnetic tunnel junction system in which we can probe the effect of the barrier by comparing junction behavior above and below the Curie temperature of the barrier layer. When the barrier is paramagnetic, the spin polarized transport is dominated by interface scattering and surface spin waves; however, when the barrier is ferrimagnetic, spin flip scattering due to spin waves within the NMO barrier dominates the transport.
Alldredge L. M. B.
Arenholz Elke
Bettinger J. S.
Chopdekar Rajesh V.
Nelson-Cheeseman Brittany B.
No associations
LandOfFree
Probing the Role of the Barrier Layer in Magnetic Tunnel Junction Transport does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probing the Role of the Barrier Layer in Magnetic Tunnel Junction Transport, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the Role of the Barrier Layer in Magnetic Tunnel Junction Transport will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-281294