Novel spin-orbit coupling driven emergent states in iridate-based heterostructures

Abstract

Recent years have seen many examples of how the strong spin-orbit coupling (SOC) present in iridates can stabilize new emergent states that are difficult or impossible to realize in more conventional materials. In this review we outline a representative set of studies detailing how heterostructures based on Ruddlesden-Popper (RP) and perovskite iridates can be used to access yet more novel physics. Beginning with a short synopsis of iridate thin film growth, the effects of the heterostructure morphology on the RP iridates including Sr2IrO4 and SrIrO3 are discussed. Example studies explore the effects of epitaxial strain, laser-excitation to access transient states, topological semimetallicity in SrIrO3, 2D magnetism in artificial RP iridates, and interfacial magnetic coupling between iridate and neighboring layers. Taken together, these works show the fantastic potential for controlled engineering of novel quantum phenomena in iridate heterostructures.

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References in corpus (72)

• Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
• Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Quantum Spin Liquid States
• Topological nodal line semimetals with and without spin-orbital coupling
• Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
• Room-temperature antiferromagnetic memory resistor
• Bandwidth-Controlled Insulator-Metal Transition and Correlated Metallic State in 5$d$ Transition Metal Oxides Sr${}_{n+1}$Ir${}_n$O${}_{3n+1}$ ($n$=1, 2, and $\infty$)
• Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach
• Interface-driven topological Hall effect in SrRuO${}_3$-SrIrO${}_3$ bilayer
• Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
• Observation of a $d$-wave gap in electron-doped Sr${}_2$IrO${}_4$
• Emergent properties hidden in plane view: Strong electronic correlations at oxide interfaces
• Spin-orbit coupling induced anisotropy effects in bimetallic antiferromagnets: A route towards antiferromagnetic spintronics
• Interplay of Spin-Orbit Interactions, Dimensionality, and Octahedral Rotations in Semimetallic SrIrO${}_3$
• Topological semimetals with Riemann surface states
• Ultrafast energy and momentum resolved dynamics of magnetic correlations in photo-doped Mott insulator Sr${}_2$IrO${}_4$
• The Challenge of Spin-Orbit-Tuned Ground States in Iridates
• Signature of high temperature superconductivity in electron doped Sr2IrO4
• Emerging magnetism and anomalous Hall effect in iridate-manganite heterostructures
• Excitonic quasiparticles in a spin-orbit Mott insulator
• Spin-orbit effects in Na${}_4$Ir${}_3$O${}_8$, a hyper-kagomé lattice antiferromagnet
• Atomic-scale control of magnetic anisotropy via novel spin-orbit coupling effect in La2/3Sr1/3MnO3/SrIrO3 superlattices
• Giant Magnon Gap in Bilayer Iridate Sr3Ir2O7: Enhanced Pseudo-dipolar Interactions Near the Mott Transition
• Spin excitations in a single La${}_2$CuO${}_4$ layer
• Dimensionality Driven Spin-Flop Transition in Layered Iridates
• Odd-parity triplet superconductivity in multi-orbital materials with strong spin-orbit coupling: applications to doped Sr2IrO4
• Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La${}_{1-x}$Sr${}_x$MnO${}_3$)/(SrIrO${}_3$) Superlattices
• Anisotropic Magnetoresistance components in (Ga,Mn)As
• Quantum Monte Carlo study of S=1/2 weakly-anisotropic antiferromagnets on the square lattice
• Robustness of basal-plane antiferromagnetic order and the $J_{eff}=1/2$ state in single-layer iridate spin-orbit Mott insulators
• Dimensionality-driven metal-insulator-transition in spin-orbit coupled SrIrO${}_3$
• Metal-insulator transition and topological properties of pyrochlore iridates
• Compressive strain-induced metal-insulator transition in orthorhombic SrIrO3 thin films
• Direct observation of the Dirac nodes lifting in semimetallic perovskite SrIrO3 thin films
• Persistent paramagnons deep in the metallic phase of Sr${}_{2-x}$La${}_x$IrO${}_4$
• Strain-induced nonsymmorphic symmetry breaking and removal of Dirac semimetallic nodal line in an orthoperovskite iridate
• Chiral Ordering Spin Associated Glass like State in SrRuO3SrIrO3 Superlattice
• Tunable Semimetallic State in Compressive-strained SrIrO3 Films Revealed by Transport Behaviors
• Insights into the High Temperature Superconducting Cuprates from Resonant Inelastic X-ray Scattering
• Crossover of conduction mechanism in Sr2IrO4 epitaxial thin films
• Two-dimensional $J_{\mathrm{eff}}$ = 1/2 antiferromagnetic insulator unraveled from interlayer exchange coupling in artificial perovskite iridate superlattices
• Charge transfer in iridate-manganite superlattices
• Detection of XY behaviour in weakly anisotropic quantum antiferromagnets on the square lattice
• Epitaxial growth and thermodynamic stability of SrIrO3/SrTiO3 heterostructures
• A charge density wave-like instability in a doped spin-orbit-assisted weak Mott insulator
• Slater Insulator in Iridate Perovskites with Strong Spin-Orbit Coupling
• Anisotropic magnetoresistance in antiferromagnetic Sr2IrO4
• Review of Spin Orbit Coupled Semimetal SrIrO3 in thin film form
• The importance of XY anisotropy in Sr2IrO4 revealed by magnetic critical scattering experiments
• Doping dependence of the magnetic excitations in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Pressure-Induced Confined Metal from the Mott Insulator Sr3Ir2O7
• Fabrication of (111)-oriented Ca0.5Sr0.5IrO3/SrTiO3 superlattices; a designed playground for honeycomb physics
• A weakly correlated Fermi liquid state with a small Fermi surface in lightly doped Sr${}_3$Ir${}_2$O${}_7$
• On the magnetic structure of Sr3Ir2O7: an x-ray resonant scattering study
• Dimensionality-strain phase diagram of strontium iridates
• Growth and engineering of perovskite SrIrO3 thin films
• Emergent ultrafast phenomena in correlated oxides and heterostructures
• Topological phases in Iridium oxide superlattices: quantized anomalous charge or valley Hall insulators
• Correlated vs. conventional insulating behavior in the Jeff=1/2 vs. 3/2 bands in the layered iridate Ba2IrO4
• Doping Evolution of Magnetic Order and Magnetic Excitations in (Sr${}_{1-x}$La${}_x$)${}_3$Ir${}_2$O${}_7$
• Semimetallic transport properties of epitaxially stabilized perovskite CaIrO3 films
• Model analysis of magnetic susceptibility of Sr${}_2$IrO${}_4$ - 2D $J_{\mathrm{eff}}$ = 1/2 Heisenberg system with competing interlayer couplings
• Effects of substrate temperature on the unusual non-Fermi liquid metal to insulator transition in perovskite SrIrO3 thin films
• Giant reversible nanoscale piezoresistance at room temperature in Sr2IrO4 thin films
• Insulating phase in Sr${}_2$IrO${}_4$: An investigation using critical analysis and magnetocaloric effect
• Competition between heavy-fermion and Kondo interaction in isoelectronic A-site ordered perovskites
• Magnetic properties of bilayer Sr${}_3$Ir${}_2$O${}_7$: role of epitaxial strain and oxygen vacancies
• Anisotropy and interaction effects of strongly strained SrIrO3 thin films
• Probing single magnon excitations in Sr${}_2$IrO${}_4$ using O $K$-edge resonant inelastic X-ray scattering
• Tracking local magnetic dynamics via high-energy charge excitations in a relativistic Mott insulator
• Topological Crystalline Metal in Orthorhombic Perovskite Iridates

Cited by in corpus (12)

• Ultrafast dynamics of spin and orbital correlations in quantum materials: an energy- and momentum-resolved perspective
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Strain-modulated Slater-Mott crossover of pseudospin-half square-lattice in (SrIrO3)1/ (SrTiO3)1 superlattices
• Isostructural Metal-Insulator Transition Driven by Dimensional-Crossover in SrIrO3 Heterostructures
• Octahedral tilting induced isospin reorientation transition in iridate heterostructures
• Strain-induced superconductivity in Sr2IrO4
• Modeling multiorbital effects in Sr2IrO4 under strain and a Zeeman field
• Doping Dependence of Spin-Momentum Locking in Bismuth-Based High-Temperature Cuprate Superconductors
• Exact results relating spin-orbit interactions in two dimensional strongly correlated systems
• Hidden structural transition in epitaxial Ca${}_{0.5}$Sr${}_{0.5}$IrO${}_3$/SrTiO${}_3$ thin film
• Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrIr${}_{0.8}$Sn${}_{0.2}$O${}_3$
• Growth-sequence-dependent interface magnetism of SrIrO${}_3$ - La${}_{0.7}$Sr${}_{0.3}$MnO${}_3$ bilayers