Interfacial tuning of chiral magnetic interactions for large topological Hall effects in LaMnO₃/SrIrO₃ heterostructures.

ABSTRACT: Chiral interactions in magnetic systems can give rise to rich physics manifested, for example, as nontrivial spin textures. The foremost interaction responsible for chiral magnetism is the Dzyaloshinskii-Moriya interaction (DMI), resulting from inversion symmetry breaking in the presence of strong spin-orbit coupling. However, the atomistic origin of DMIs and their relationship to emergent electrodynamic phenomena, such as topological Hall effect (THE), remain unclear. Here, we investigate the role of interfacial DMIs in 3d-5d transition metal-oxide-based LaMnO₃/SrIrO₃ superlattices on THE from a chiral spin texture. By additively engineering the interfacial inversion symmetry with atomic-scale precision, we directly link the competition between interfac

SUBMITTER: Skoropata E 

PROVIDER: S-EPMC7455502 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature