Structural origins of the properties of rare earth nickelate superlattices

Abstract

NiO6 octahedral tilts in the LaNiO3/SrTiO3 superlattices are quantified using position averaged convergent beam electron diffraction in scanning transmission electron microscopy. It is shown that maintaining oxygen octahedra connectivity across the interface controls the octahedral tilts in the LaNiO3 layers, their lattice parameters and their transport properties. Unlike films and layers that are connected on one side to the substrate, subsequent LaNiO3 layers in the superlattice exhibit a relaxation of octahedral tilts towards bulk values. This relaxation is facilitated by correlated tilts in SrTiO3 layers and is correlated with the conductivity enhancement of the LaNiO3 layers in the superlattices relative to individual films.

Accepted for publication in Physical Review B (Rapid Communication)

References in corpus (5)

• Orbital order and possible superconductivity in LaNiO3/LaMO3 superlattices
• Site-selective Mott transition in rare earth nickelates
• Structural phase transitions in epitaxial perovskite films
• Nanoscale Quantification of Octahedral Tilts in Perovskite Films
• Onset of metallic behavior in strained (LaNiO3)n/(SrMnO3)2 superlattices

Cited by in corpus (23)

• Physics of ultrathin films and heterostructures of rare earth nickelates
• Emergent properties hidden in plane view: Strong electronic correlations at oxide interfaces
• Strain and composition dependence of the orbital polarization in nickelate superlattices
• Spin-orbit semimetal SrIrO${}_3$ in the two-dimensional limit
• Nanoscale Phonon Spectroscopy Reveals Emergent Interface Vibrational Structure of Superlattices
• A Deep Convolutional Neural Network to Analyze Position Averaged Convergent Beam Electron Diffraction Patterns
• Fundamental difference in the electronic reconstruction of infinite-layer vs. perovskite neodymium nickelate films on SrTiO${}_3$(001)
• Orbital Polarization in Strained LaNiO${}_3$: Structural Distortions and Correlation Effects
• Design of $n$- and $p$-type oxide thermoelectrics in LaNiO${}_3$/SrTiO${}_3(001)$ superlattices exploiting interface polarity
• Lattice distortion effects on topological phases in (LaNiO${}_3$)${}_2$/(LaAlO${}_3$)${}_N$ heterostructures grown along the [111] direction
• Key role of lattice symmetry in the metal-insulator transition of NdNiO3 films
• Correlation between metal-insulator transitions and structural distortions in high-electron-density SrTiO3 quantum wells
• Correlated interface electron gas in infinite-layer nickelate versus cuprate films on SrTiO${}_3$(001)
• Magnetism and local structure in low-dimensional, Mott insulating GdTiO3
• Dimensionality-tuned electronic structure of nickelate superlattices explored by soft-x-ray angle resolved photoelectron spectroscopy
• Effect of charge doping on the electronic structure, orbital polarization, and structural distortion in nickelate superlattice
• Depth-Resolved Composition and Electronic Structure of Buried Layers and Interfaces in a LaNiO${}_3$/SrTiO${}_3$ Superlattice from Soft- and Hard- X-ray Standing-Wave Angle-Resolved Photoemission
• Doping driven structural distortion in the bilayer iridate (Sr${}_{1-x}$La${}_x$)${}_3$Ir${}_2$O${}_7$
• Coupling of electronic and structural degrees of freedom in vanadate superlattices
• Rashba spin-orbit coupling in infinite-layer nickelate films on SrTiO3(001) and KTaO3(001)
• Fermi surface reconstruction and enhanced spin fluctuations in strained La${}_3$Ni${}_2$O${}_7$ on LaAlO${}_3$(001) and SrTiO${}_3$(001)
• Oxide Heterostructures from a Realistic Many-Body Perspective
• Ferroelectric Control of Metal-Insulator Transition