Propagation control of octahedral tilt in SrRuO3 via artificial heterostructuring

Abstract

Bonding geometry engineering of metal-oxygen octahedra is a facile way of tailoring various functional properties of transition metal oxides. Several approaches, including epitaxial strain, thickness, and stoichiometry control, have been proposed to efficiently tune the rotation and tilting of the octahedra, but these approaches are inevitably accompanied by unnecessary structural modifications such as changes in thin-film lattice parameters. In this study, we propose a method to selectively engineer the octahedral bonding geometries, while maintaining other parameters that might implicitly influence the functional properties. A concept of octahedral tilt propagation engineering has been developed using atomically designed SrRuO3/SrTiO3 superlattices. In particular, the propagation of RuO6 octahedral tilting within the SrRuO3 layers having identical thicknesses was systematically controlled by varying the thickness of adjacent SrTiO3 layers. This led to a substantial modification in the electromagnetic properties of the SrRuO3 layer, significantly enhancing the magnetic moment of Ru. Our approach provides a method to selectively manipulate the bonding geometry of strongly correlated oxides, thereby enabling a better understanding and greater controllability of their functional properties.

arXiv comment27 pages, 4 figures, 6 supplementary figures

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Cited by in corpus (12)

• Unconventional interlayer exchange coupling via chiral phonons in synthetic magnetic oxide heterostructures
• Cooperative control of perpendicular magnetic anisotropy via crystal structure and orientation in single-crystal flexible SrRuO3 membranes
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Dimensional Control of Octahedral Tilt in SrRuO3 via Infinite-layered Oxides
• Tailoring topological Hall effect in SrRuO3/SrTiO3 superlattices
• Atomistic Engineering of Phonons in Functional Oxide Heterostructures
• Symmetry-Driven Spin-Wave Gap Modulation in Nanolayered SrRuO3/SrTiO3 Heterostructures: Implications for Spintronic Applications
• Atomic and Electronic Structures of Correlated SrRuO3/SrTiO3 Superlattices
• Dimensionality Engineering of Magnetic Anisotropy from Anomalous Hall Effect in Synthetic SrRuO3 Crystals
• Atomic-scale Modulation of Synthetic Magnetic Order in Oxide Superlattices
• Exotic magnetic anisotropy near digitized dimensional Mott boundary
• Strain Engineering of van Hove Singularity and Coupled Itinerant Ferromagnetism in Quasi-2D Oxide Superlattices