Electronic structure induced reconstruction and magnetic ordering at the LaAlO${}_3|$SrTiO${}_3$ interface

Abstract

Using local density approximation (LDA) calculations we predict GdFeO${}_3$-like rotation of TiO${}_6$ octahedra at the $n$-type interface between LaAlO${}_3$ and SrTiO${}_3$. The narrowing of the Ti $d$ bandwidth which results means that for very modest values of $U$, LDA$+U$ calculations predict charge and spin ordering at the interface. Recent experimental evidence for magnetic interface ordering may be understood in terms of the close proximity of an antiferromagnetic insulating ground state to a ferromagnetic metallic excited state.

References in corpus (11)

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Cited by in corpus (35)

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• Physics of SrTiO${}_3$-based heterostructures and nanostructures: a review
• Instability, Intermixing and Electronic Structure at the Epitaxial LaAlO3/SrTiO3(001) Heterojunction
• Magnetism and superconductivity at LAO/STO-interfaces: the role of Ti 3d interface electrons
• Anisotropic magneto-transport effects at SrTiO3\LaAlO3 interfaces
• Polarity-induced oxygen vacancies at LaAlO3|SrTiO3 interfaces
• Polar catastrophe and electronic reconstructions at the LaAlO3/SrTiO3 interface: evidence from optical second harmonic generation
• Artificial two-dimensional polar metal at room temperature
• Massive symmetry breaking in LaAlO${}_3$/SrTiO${}_3$(111) quantum wells: a three-orbital, strongly correlated generalization of graphene
• Hard x-ray photoemission and density functional theory study of the internal electric field in SrTiO3/LaAlO3 oxide heterostructures
• Electronic reconstruction at the isopolar LaTiO3/LaFeO3 interface: An x-ray photoemission and density functional theory study
• Ferroelectric Dead Layer Driven by a Polar Interface
• Fundamental asymmetry in interfacial electronic reconstruction between insulating oxides
• Systematic improvability in quantum embedding for real materials
• Prediction of thickness limits of ideal polar ultrathin films
• A First-Principles Study of the Electronic Reconstructions of LaAlO3/SrTiO3 Heterointerfaces and Their Variants
• Interface relaxation and electrostatic charge depletion in the oxide heterostructure LaAlO3/SrTiO3
• Tuning ferromagnetism at interfaces between insulating perovskite oxides
• Emerging magnetism and electronic phase separation at titanate interfaces
• Stability and electronic properties of the LaNiO${}_2$/SrTiO${}_3$ interface
• Low-temperature dependence of the thermo-magnetic transport properties of the SrTiO3/LaAlO3 interface
• Charge ordering and magnetism in quarter-filled Hubbard-Holstein model
• Stable hump-like Hall effect and non-coplanar spin textures in SrRuO${}_3$ ultrathin film
• Microscopic understanding of the orbital splitting and its tuning at oxide interfaces
• Termination control of electronic phases in oxide thin films and interfaces: LaAlO3/SrTiO3(001)
• Electronic Structure of Oxide Interfaces: A Comparative Analysis of GdTiO${}_3$/SrTiO${}_3$ and LaAlO${}_3$/SrTiO${}_3$ Interfaces
• Electronic properties of LaAlO3/SrTiO3 n-type interfaces: A GGA+U study
• Two-dimensional electron systems in ATiO3 perovskites (A = Ca, Ba, Sr): control of orbital hybridization and order
• Electronic Phases and Phase Separation in the Hubbard-Holstein Model of a Polar Interface
• Anomalous magneto-transport at the superconducting interface between LaAlO3 and SrTiO3
• Understanding the role of exchange and correlations in complex oxides under strain and oxide heterostructures
• Direct observation of two-dimensional small polarons at correlated oxide interface
• Multiferroic interfaces composed of d0 perovskites oxides