Diffusive model of current-in-plane-tunneling in double magnetic tunnel junctions

P.-Y. Clement (1) , C. Ducruet (2) , C. Baraduc (1) , M. Chshiev (1) , B. Diény (1)

1 SPINTEC - SPINtronique et TEchnologie des Composants
2 CROCUS Technology

We propose a model that describes current-in-plane tunneling transport in double barrier magnetic tunnel junctions in diffusive regime. Our study shows that specific features appear in double junctions that are described by introducing two typical length scales. The model may be used to measure the magnetoresistance and the resistance area product of both barriers in unpatterned stacks of double barrier magnetic tunnel junctions.

Domains: Physics [physics]; Condensed Matter [cond-mat]; Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]

P.-Y. Clement, C. Ducruet, C. Baraduc, M. Chshiev, B. Diény. Diffusive model of current-in-plane-tunneling in double magnetic tunnel junctions. Applied Physics Letters, 2012, 100 (26), pp.262404. ⟨10.1063/1.4730961⟩. ⟨cea-00852052⟩