Quantum-Confinement-Induced Magnetism in LaNiO${}_3$-LaMnO${}_3$ Superlattices

Abstract

The emergence of magnetic reconstructions at the interfaces of oxide heterostructures are often explained via subtle modifications in the electronic densities, exchange couplings, or strain. Here an additional possible route for induced magnetism is studied in the context of the (LaNiO${}_3$)${}_n$/(LaMnO${}_3$)${}_n$ superlattices using a hybrid tight-binding model. In the LaNiO${}_3$ region, the induced magnetizations decouple from the intensity of charge leakage from Mn to Ni, but originate from the spin-filtered quantum confinement present in these nanostructures. In general, the induced magnetization is the largest for the (111)-stacking and the weakest for the (001)-stacking superlattices, results compatible with the exchange bias effects reported by Gibert et al. Nat. Mater. 11, 195 (2012).

8 pages, 8 figures

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Cited by in corpus (16)

• Orbital control of noncollinear magnetic order in nickelate heterostructures
• Band alignment and charge transfer in complex oxide interfaces
• Strong coupling of Jahn-Teller distortion to oxygen-octahedron rotation and functional properties in epitaxially-strained orthorhombic LaMnO${}_3$
• Lattice distortion effects on topological phases in (LaNiO${}_3$)${}_2$/(LaAlO${}_3$)${}_N$ heterostructures grown along the [111] direction
• Charge transfer and hybrid ferroelectricity in (YFeO${}_3$)${}_n$/(YTiO${}_3$)${}_n$ magnetic superlattices
• Charge transfer, confinement, and ferromagnetism in LaMnO${}_3$/LaNiO${}_3$ (001)-superlattice
• Topological magnetic phase in LaMnO${}_3$ (111) bilayer
• Appearance and disappearance of ferromagnetism in ultra-thin LaMnO${}_3$ on SrTiO${}_3$ substrate: a viewpoint from first-principles
• Geometrical lattice engineering of complex oxide heterostructures: a designer approach to emergent quantum states
• Interfacial Magnetism in Complex Oxide Heterostructures Probed by Neutrons and X-rays
• Control of hidden ground-state order in NdNiO${}_3$ superlattices
• Spectral weight redistribution in (LaNiO3)n/(LaMnO3)2 superlattices from optical spectroscopy
• (LaTiO${}_3$)${}_n$/(LaVO${}_3$)${}_n$ as a model system for unconventional charge transfer and polar metallicity
• Persistent half-metallic ferromagnetism in a (111)-oriented manganite superlattice
• Magnetism and electronic structure of ($001$)- and ($111$)-oriented LaTiO${}_3$ bilayers sandwiched in LaScO${}_3$ barriers
• Orientation-dependent ferroelectricity of strained PbTiO${}_3$ films