Probing the Role of the Barrier Layer in Magnetic Tunnel Junction Transport

Simple item page
dc.creatorNelson-Cheeseman, B. B.
dc.creatorChopdekar, R. V.
dc.creatorAlldredge, L. M. B.
dc.creatorBettinger, J. S.
dc.creatorArenholz, E.
dc.creatorSuzuki, Y.
dc.date2007-06-19
dc.date2007-12-05
dc.date.accessioned2026-07-07T10:05:05Z
dc.date.available2026-07-07T10:05:05Z
dc.descriptionMagnetic 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.
dc.description10 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0706.2726
dc.identifierhttp://arxiv.org/abs/0706.2726
dc.identifierPhys. Rev. B 76, 220410(R) (2007)
dc.identifierdoi:10.1103/PhysRevB.76.220410
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/169908
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleProbing the Role of the Barrier Layer in Magnetic Tunnel Junction Transport
dc.typetext

Files

Collections

arXiv