Dimensionality Driven Spin-Flop Transition in Layered Iridates

Abstract

Using resonant x-ray diffraction, we observe an easy c-axis collinear antiferromagnetic structure for the bilayer Sr${}_3$Ir${}_2$O${}_7$, a significant contrast to the single layer Sr${}_2$IrO${}_4$ with in-plane canted moments. Based on a microscopic model Hamiltonian, we show that the observed spin-flop transition as a function of number of IrO${}_2$ layers is due to strong competition among intra- and inter-layer bond-directional pseudo-dipolar interactions of the spin-orbit entangled $J_{eff}$=1/2 moments. With this we unravel the origin of anisotropic exchange interactions in a Mott insulator in the strong spin-orbit coupling regime, which holds the key to the various types of unconventional magnetism proposed in 5$d$ transition metal oxides.

References in corpus (14)

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• Long range magnetic ordering in Na${}_2$IrO${}_3$
• Antiferromagnetic order and domains in Sr3Ir2O7 probed by x-ray resonant scattering
• Competition between d-wave and topological p-wave superconductivity in the doped Kitaev-Heisenberg model

Cited by in corpus (87)

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• 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-orbit-entangled electronic phases in 4$d$ and 5$d$ transition-metal compounds
• Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La${}_{1-x}$Sr${}_x$MnO${}_3$)/(SrIrO${}_3$) Superlattices
• Robustness of basal-plane antiferromagnetic order and the $J_{eff}=1/2$ state in single-layer iridate spin-orbit Mott insulators
• Testing the validity of the strong spin-orbit-coupling limit for octahedrally coordinated iridates in a model system Sr${}_3$CuIrO${}_6$
• Dimensionality-driven metal-insulator-transition in spin-orbit coupled SrIrO${}_3$
• Slaving of the magnetic moment canting to the correlated oxygen rotation in Sr2IrO4 revealed by X-ray resonant scattering
• Neutron scattering study of correlated phase behavior in Sr2IrO4
• Square Lattice Iridates
• A New Type of Quantum Criticality in the Pyrochlore Iridates
• Magnetism and electronic structure of La2ZnIrO6 and La2MgIrO6: candidate Jeff =1/2 Mott insulators
• Dilute Magnetism and Spin-Orbital Percolation Effects in Rh-doped Sr2IrO4
• CaIrO3: a Spin-Orbit Mott Insulator Beyond the jeff = 1/2 Ground State
• Two-magnon Raman scattering and pseudospin-lattice interactions in Sr2IrO4 and Sr3Ir2O7
• Two-dimensional $J_{\mathrm{eff}}$ = 1/2 antiferromagnetic insulator unraveled from interlayer exchange coupling in artificial perovskite iridate superlattices
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• Theory of magnetism and metal-insulator transition in layered perovskite iridates
• Weak antiferromagnetism of J_eff=1/2 band in bilayer iridate Sr3Ir2O7
• Giant magnetic response of a two-dimensional antiferromagnet
• Giant spin-phonon-electronic coupling in a 5d oxide
• Evidence of quantum dimer excitations in Sr${}_3$Ir${}_2$O${}_7$
• Relativistic $GW$+BSE study of the optical properties of Ruddlesden-Popper iridates
• Surface States of Perovskite Iridates AIrO${}_3$; Signatures of Topological Crystalline Metal with Nontrivial ${\mathbb{Z}}_2$ Index
• Low energy magnetic excitations in the spin-orbital Mott insulator Sr${}_2$IrO${}_4$
• Ferromagnetic Exchange Anisotropy from Antiferromagnetic Superexchange in the Mixed 3d-5d Transition-Metal Compound Sr3CuIrO6
• Interplay of many-body and single-particle interactions in iridates and rhodates
• Spectroscopic evidence for polaronic behaviour of the strong spin-orbit insulator Sr${}_3$Ir${}_2$O${}_7$
• Persistent non-metallic behavior in Sr2IrO4 and Sr3Ir2O7 at high pressures
• Carrier localization and electronic phase separation in a doped spin-orbit driven Mott phase in Sr3(Ir1-xRux)2O7
• Unraveling the nature of magnetism of the 5${\mathbf{d}}^4$ double perovskite Ba${}_2$YIrO${}_6$
• Review of Spin Orbit Coupled Semimetal SrIrO3 in thin film form
• Magnetic structural change of Sr2IrO4 upon Mn doping
• First-order melting of a weak spin-orbit Mott insulator into a correlated metal
• Spin ordering and electronic texture in the bilayer iridate Sr${}_3$Ir${}_2$O${}_7$
• Dimensionality-strain phase diagram of strontium iridates
• A weakly correlated Fermi liquid state with a small Fermi surface in lightly doped Sr${}_3$Ir${}_2$O${}_7$
• Orbital occupancies and the putative jeff = 1/2 groundstate in Ba2IrO4: a combined oxygen K edge XAS and RIXS study
• Structural investigation of the bilayer iridate Sr3Ir2O7
• Spin and Orbital Contributions to Magnetically Ordered Moments in 5d Layered Perovskite Sr2IrO4
• Evolution of competing magnetic order in the Jeff=1/2 insulating state of Sr2Ir1-xRuxO4
• Dispersive Magnetic and Electronic Excitations in Iridate Perovskites Probed with Oxygen $K$-Edge Resonant Inelastic X-ray Scattering
• Direct experimental observation of the molecular Jeff=3/2 ground state in the lacunar spinel GaTa4Se8
• The Jeff=1/2 antiferromagnet Sr2IrO4: A golden avenue toward new physics and functions
• Doping Evolution of Magnetic Order and Magnetic Excitations in (Sr${}_{1-x}$La${}_x$)${}_3$Ir${}_2$O${}_7$
• Resonant inelastic x-ray scattering operators for $t_{2g}$ orbital systems
• Electron and hole doping in the relativistic Mott insulator Sr${}_2$IrO${}_4$: a first-principles study using band unfolding technique
• Correlation effects and hidden spin-orbit entangled electronic order in parent and electron-doped iridates Sr${}_2$IrO${}_4$
• Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
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• Jeff=1/2 Mott spin-orbit insulating state close to the cubic limit in Ca4IrO6
• Strain Tuning of Plasma Frequency in Vanadate, Niobate, and Molybdate Perovskite Oxides
• The J_{eff}=1/2 insulator Sr3Ir2O7 studied by means of angle-resolved photoemission spectroscopy
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Spontaneous Hall Effect enhanced by local Ir moments in epitaxial Pr${}_2$Ir${}_2$O${}_7$ thin films
• Electronic Structure and Magnetic Properties of Iridate Superlattice SrIrO${}_3$/SrTiO${}_3$
• Pressure dependence of the structure and electronic properties of Sr3Ir2O7
• Orbital ordering of Ir-t2g states in the double perovskite Sr2CeIrO6
• Crystal field splitting in Sr${}_{n+1}$Ir${}_n$O${}_{3n+1}$ ($n$ = 1, 2) iridates probed by x-ray Raman spectroscopy
• Strain-modulated Slater-Mott crossover of pseudospin-half square-lattice in (SrIrO3)1/ (SrTiO3)1 superlattices
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• Evidence for ordered magnetic moments at oxygen sites in antiferromagnetic Sr${}_2$IrO${}_4$ and Sr${}_3$Ir${}_2$O${}_7$
• Magnetic properties of bilayer Sr${}_3$Ir${}_2$O${}_7$: role of epitaxial strain and oxygen vacancies
• Disordered dimer state in electron-doped Sr${}_3$Ir${}_2$O${}_7$
• Spin correlated electronic state on the surface of a spin-orbit Mott system (Layered Iridates)
• Symmetry-resolved two-magnon excitations in a strong spin-orbit-coupled bilayer antiferromagnet
• Towards Electrical-Current Control of Quantum States in Spin-Orbit-Coupled Matter
• Metal-Insulator Transitions and non-Fermi Liquid Behaviors in 5d Perovskite Iridates
• Magnon dressing by orbital excitations in ferromagnetic planes of K${}_2$CuF${}_4$ and LaMnO${}_3$
• Precise control of $J_{\mathrm{eff}}=1/2$ magnetic properties in Sr${}_2$IrO${}_4$ epitaxial thin films by variation of strain and thin film thickness
• Quasi-2D anomalous Hall Mott insulator of topologically engineered Jeff =1/2 electrons
• Epitaxial stabilization of Sr3Ir2O7 thin films
• Electronic and optical properties of La-doped Sr${}_3$Ir${}_2$O${}_7$ epitaxial thin-films
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• Molecular orbital polarization in Na2Ti2Sb2O: microscopic route to metal-metal transition without spontaneous symmetry breaking
• Structural, magnetic and dielectric properties in 3$d$-5$d$ based Sr${}_2$FeIrO${}_6$ thin films
• Critical fluctuations in the spin-orbit Mott insulator Sr${}_3$Ir${}_2$O${}_7$
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• Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrIr${}_{0.8}$Sn${}_{0.2}$O${}_3$
• Magnetism in artificial Ruddlesden-Popper iridates leveraged by structural distortions
• Mixed-pairing superconductivity in 5d Mott insulators with antisymmetric exchange
• Fingerprints of Mott and Slater gaps in the core-level photoemission spectra of antiferromagnetic iridates