Electrical Transport and Magnetic Properties of Metal/Metal Oxide/Metal Junctions Based on Anodized Metal Oxides

In this paper, we describe magnetoelectric properties of metal/metal-oxide/metal junctions based on anodized metal oxides. Specifically, we use Ti and Fe metallic layers separated by the porous metal-oxides of iron or titanium formed by the anodization method. Thus, we prepare double junctions with at least one ferromagnetic layer and measure magnetoresistance, as well as their current-voltage and magnetic characteristics. We find that magnetoresistance depends on that junction composition and discuss the nature of differential resistance calculated from I-V characteristics. Our findings show that a top metallic layer and the interface between this layer and anodized oxide, where strong interatomic diffusion is expected, have the strongest influence on this observed behavior.

Automated summary

This study explores the magnetoelectric properties of metal/metal-oxide/metal junctions based on anodized metal oxides, particularly using Ti and Fe metallic layers separated by porous metal-oxides of iron or titanium. The research finds that magnetoresistance is influenced by the junction composition, with strong interatomic diffusion at the interface between the top metallic layer and anodized oxide having the most significant impact on observed behavior.