Planar Hall effect and anisotropic magnetoresistance in polar-polar interface of LaVO₃-KTaO₃ with strong spin-orbit coupling.

ABSTRACT: Among the perovskite oxide family, KTaO₃ (KTO) has recently attracted considerable interest as a possible system for the realization of the Rashba effect. In this work, we report a novel conducting interface by placing KTO with another insulator, LaVO₃ (LVO) and report planar Hall effect (PHE) and anisotropic magnetoresistance (AMR) measurements. This interface exhibits a signature of strong spin-orbit coupling. Our experimental observations of two fold AMR and PHE at low magnetic fields (B) is similar to those obtained for topological systems and can be intuitively understood using a phenomenological theory for a Rashba spin-split system. Our experimental data show a B² dependence of AMR and PHE at low magnetic fields that could also be explained based on

SUBMITTER: Wadehra N 

PROVIDER: S-EPMC7018836 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature