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Nature Research, Nature Communications, 1(7), 2016

DOI: 10.1038/ncomms12721

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Emerging magnetism and anomalous Hall effect in iridate–manganite heterostructures

Journal article published in 2016 by John Nichols, Xiang Gao, Shinbuhm Lee, Tricia L. Meyer, John W. Freeland, Valeria Lauter ORCID, Di Yi, Jian Liu, Daniel Haskel, Jonathan R. Petrie, Er-Jia Guo ORCID, Andreas Herklotz ORCID, Dongkyu Lee, Thomas Z. Ward ORCID, Gyula Eres ORCID and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

AbstractStrong Coulomb repulsion and spin–orbit coupling are known to give rise to exotic physical phenomena in transition metal oxides. Initial attempts to investigate systems, where both of these fundamental interactions are comparably strong, such as 3d and 5d complex oxide superlattices, have revealed properties that only slightly differ from the bulk ones of the constituent materials. Here we observe that the interfacial coupling between the 3d antiferromagnetic insulator SrMnO3 and the 5d paramagnetic metal SrIrO3 is enormously strong, yielding an anomalous Hall response as the result of charge transfer driven interfacial ferromagnetism. These findings show that low dimensional spin–orbit entangled 3d–5d interfaces provide an avenue to uncover technologically relevant physical phenomena unattainable in bulk materials.