Resonant Inelastic X-ray Scattering on Spin-Orbit Coupled Insulating Iridates

Abstract

We determine how the elementary excitations of iridium-oxide materials, which are dominated by a strong relativistic spin-orbit coupling, appear in Resonant Inelastic X-ray Scattering (RIXS). Whereas the RIXS spectral weight at the L2 x-ray edge vanishes, we find it to be strong at the L3-edge. Applying this to Sr2IrO4, we observe that RIXS, besides being sensitive to local doublet to quartet transitions, meticulously maps out the strongly dispersive delocalized excitations of the low-lying spin-orbit doublets.

4 pages, 3 figures

References in corpus (6)

• Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
• 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
• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Quantum spin Hall effect in a transition metal oxide Na2IrO3
• Electronic structures of layered perovskite Sr2MO4 (M=Ru, Rh, and Ir)

Cited by in corpus (51)

• Resonant Inelastic X-ray Scattering Studies of Elementary Excitations
• Isospin Dynamics in Sr2IrO4 : Forging Links to Cuprate Superconductivity
• Magnetic anisotropy in the Kitaev model systems Na2IrO3 and RuCl3
• Testing the validity of the strong spin-orbit-coupling limit for octahedrally coordinated iridates in a model system Sr${}_3$CuIrO${}_6$
• Fingerprints of spin-orbital entanglement in transition metal oxides
• Magnetic couplings, optical spectra, and spin-orbit exciton in 5d electron Mott insulator Sr2IrO4
• CaIrO3: a Spin-Orbit Mott Insulator Beyond the jeff = 1/2 Ground State
• Topological states in pyrochlore iridates: long-range anisotropy strongly competing with spin-orbit interaction
• Resonant X-ray scattering and the $j_{\mathrm{eff}}=1/2$ electronic ground state in iridate perovskites
• Resonant inelastic X-ray scattering response of the Kitaev honeycomb model
• Ab initio determination of excitation energies and magnetic couplings in correlated, quasi two-dimensional iridates
• X-ray scattering study of pyrochlore iridates: crystal structure, electronic and magnetic excitations
• Resonant inelastic x-ray incarnation of Young's double-slit experiment
• Crossover from coherent to incoherent scattering in spin-orbit dominated Sr2IrO4
• Orbital occupancies and the putative jeff = 1/2 groundstate in Ba2IrO4: a combined oxygen K edge XAS and RIXS study
• Strain-engineering of the charge and spin-orbital interactions in Sr2IrO4
• Spin-orbit coupled systems in the "atomic" limit: rhenates, osmates, iridates
• Jahn-Teller effect in systems with strong on-site spin-orbit coupling
• Resonant inelastic x-ray scattering operators for $t_{2g}$ orbital systems
• Hopping induced ground-state magnetism in 6H perovskite iridates
• Anisotropic softening of magnetic excitations in lightly electron doped Sr${}_2$IrO${}_4$
• Probing spinon nodal structures in three-dimensional Kitaev spin liquids
• Observing spin fractionalization in the Kitaev spin liquid via temperature evolution of indirect resonant inelastic x-ray scattering
• Theoretical study of the spin and charge dynamics of two-leg ladders as probed by resonant inelastic x-ray scattering
• Crystal field splitting in Sr${}_{n+1}$Ir${}_n$O${}_{3n+1}$ ($n$ = 1, 2) iridates probed by x-ray Raman spectroscopy
• Anisotropic interactions opposing magnetocrystalline anisotropy in Sr${}_3$NiIrO${}_6$
• Resonant Inelastic X-Ray Scattering as a Probe of the Phase and Excitations of the Order Parameter of Superconductors
• Possibility to realize spin-orbit-induced correlated physics in iridium fluorides
• Disordered dimer state in electron-doped Sr${}_3$Ir${}_2$O${}_7$
• High-pressure insulator-to-metal transition in Sr${}_3$Ir${}_2$O${}_7$ studied by x-ray absorption spectroscopy
• Resolving the nature of electronic excitations in resonant inelastic x-ray scattering
• Vibronic Excitation Dynamics in Orbitally Degenerate Correlated Electron System
• Strong coupling theory of spin and orbital excitations in Sr2IrO4
• High-energy electronic excitations in Sr${}_2$IrO${}_4$ observed by Raman scattering
• Quasimolecular $J_{\mathrm{tet}}$=3/2 moments in the cluster Mott insulator GaTa${}_4$Se${}_8$
• Analysis of resonant inelastic x-ray scattering from Sr${}_2$IrO${}_4$ in an itinerant-electron approach
• Magnetic excitation in resonant inelastic x-ray scattering of Sr${}_2$IrO${}_4$: A localized spin picture
• Resonant inelastic x-ray scattering of magnetic excitations under pressure
• Interplay between Hund's coupling and spin-orbit interaction on elementary excitations in Sr2IrO4
• Entanglement Witness for Indistinguishable Electrons using Solid-State Spectroscopy
• Elementary excitations probed by L-edge resonant inelastic x-ray scattering in systems with weak and intermediate electron correlations
• Resonant inelastic x-ray scattering on single-magnons at oxygen $K$-edges
• Selective probing of magnetic order on Tb and Ir sites in stuffed Tb${}_{2+x}$Ir${}_{2-x}$O${}_{7-y}$ using resonant X-ray scattering
• Spin-orbit excitons and electronic configuration of the $5d^4$ insulator Sr${}_3$Ir${}_2$O${}_7$F${}_2$
• On the electronic ground state of two non-magnetic pentavalent honeycomb iridates
• Correlated motion of particle-hole excitations across the renormalized spin-orbit gap in $\mathrm{S}{\mathrm{r}}_2\mathrm{Ir}{\mathrm{O}}_4$
• Resonant inelastic X-ray scattering investigation of Hund's and spin-orbit coupling in $5d^2$ double perovskites
• Ultrafast X-ray Absorption Spectroscopy of Strongly Correlated Systems: Core Hole Effect
• A $j_{\mathrm{eff}}=1/2$ pseudospinon continuum in CaIrO${}_3$
• Quasimolecular electronic structure of the trimer iridate Ba${}_4$NbIr${}_3$O${}_{12}$
• Resonant inelastic X-ray scattering in the topological semimetal FeSi