Phys. Status Solidi B, 1–8 (2016)

I. Lindfors-Vrejoiu and M. Ziese

Abstract

Interaction of conduction electrons with non-coplanar or noncollinear spin textures in metals can result in intriguing phenomena, among which a topological Hall effect. Here, we report on topological Hall effect manifestation in epitaxial heterostructures of thin metallic layers of two prototypical ferromagnetic oxides, namely SrRuO₃ and La_0.7Sr_0.3MnO₃. The topological Hall effect arises most likely from the non-coplanar ordering of the Ru and Mn magnetic moments in the individual ferromagnetic layers, which exhibit different magnetocrystalline anisotropies and a strong antiferromagnetic interlayer-coupling.

DOI