Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices

Abstract

Unexpected, yet useful functionalities emerge when two or more materials merge coherently. Artificial oxide superlattices realize atomic and crystal structures that are not available in nature, thus providing controllable correlated quantum phenomena. This review focuses on 4d and 5d oxide superlattices, in which the spin-orbit coupling plays a significant role compared with conventional 3d oxide superlattices. Modulations in crystal structures with octahedral distortion, phonon engineering, electronic structures, spin orderings, and dimensionality control are discussed for 4d oxide superlattices. Atomic and magnetic structures, Jeff = 1/2 pseudospin and charge fluctuations, and the integration of topology and correlation are discussed for 5d oxide superlattices. This review provides insights into how correlated quantum phenomena arise from the deliberate design of superlattice structures that give birth to novel functionalities.

68 pages

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Cited by in corpus (7)

• Advances in Complex Oxide Quantum Materials Through New Approaches to Molecular Beam Epitaxy
• Large asymmetric anomalous Nernst effect in the antiferromagnet SrIr${}_{0.8}$Sn${}_{0.2}$O${}_3$
• Dimensionality Engineering of Magnetic Anisotropy from Anomalous Hall Effect in Synthetic SrRuO3 Crystals
• Sign competing sources of Berry curvature and anomalous Hall conductance humps in topological ferromagnets
• Exotic magnetic anisotropy near digitized dimensional Mott boundary
• Outstanding TC Enhancement in 5d-3d Y2NiIrO6 by Compression
• Strain Engineering of van Hove Singularity and Coupled Itinerant Ferromagnetism in Quasi-2D Oxide Superlattices