Hybrid magnetic tunnel junction/ spin filter device

Yuri Suzuki; Brittany Nelson-Cheeseman; Franklin Wong; Rajesh Chopdekar; Elke Arenholz

doi:10.1117/12.797406

4 September 2008 Hybrid magnetic tunnel junction/ spin filter device

Yuri Suzuki, Brittany Nelson-Cheeseman, Franklin Wong, Rajesh Chopdekar, Elke Arenholz

Proceedings Volume 7036, Spintronics; 70360U (2008) https://doi.org/10.1117/12.797406
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

Surfaces and interfaces of complex oxides materials provide a rich playground for the exploration of novel magnetic properties not found in the bulk but also the development of functional interfaces to be incorporated into applications. We have recently been able to demonstrate a new type of hybrid spin filter/ magnetic tunnel junction. Our hybrid spin-filter/magnetic-tunnel junction devices are epitaxial oxide junctions of La_0:7Sr_0:3MnO₃ and Fe₃O₄ electrodes with magnetic NiMn₂O₄ barrier layers. Depending on whether the barrier is in a paramagnetic or ferromagnetic state, the junction exhibits magnetic tunnel junction behavior where the spin polarized conduction is dominated by the electrode-barrier interface or spin filter behavior where conduction is dominated by barrier layer magnetism.

Citation Download Citation

Yuri Suzuki, Brittany Nelson-Cheeseman, Franklin Wong, Rajesh Chopdekar, and Elke Arenholz "Hybrid magnetic tunnel junction/ spin filter device", Proc. SPIE 7036, Spintronics, 70360U (4 September 2008); https://doi.org/10.1117/12.797406

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