Magnetotransport of SrIrO3-based heterostructures

Abstract

Transition-metal oxide (TMO) based heterostructures provide fertile playground to explore or functionalize novel quantum materials. In this regard, the combination of 3 d and 5 d TMOs have gained special interest because of the simultaneous appearance of strong spin–orbit coupling and electron correlation at the interface of those heterostructures. Artificial breaking of the inversion symmetry in heterostructures may also result in a distinct interfacial Dzyaloshinskii-Moriya interaction (DMI) and the formation of non-collinear magnetic spin structures in case of magnetic TMOs. Among the 5 d TMOs, SrIrO3 (SIO) has gained significant attention because of its large spin–orbit coupling and the semi-metallic ground state, which are highly susceptible to structural distortions. Here, we report on the preparation and the characterisation of structural, electronic and magnetic properties of epitaxial heterostructures consisting of the 5 d TMO SIO and the 3 d antiferromagnetic insulator LaFeO3.