Novel magnetism of Ir5+ ions in the double perovskite Sr2YIrO6

Abstract

We synthesize and study single crystals of a new double-perovskite Sr2YIrO6. Despite two strongly unfavorable conditions for magnetic order, namely, pentavalent Ir5+(5d4) ions which are anticipated to have Jeff=0 singlet ground states in the strong spin-orbit coupling (SOC) limit, and geometric frustration in a face centered cubic structure formed by the Ir5+ ions, we observe this iridate to undergo a novel magnetic transition at temperatures below 1.3 K. We provide compelling experimental and theoretical evidence that the origin of magnetism is in an unusual interplay between strong non-cubic crystal fields and intermediate-strength SOC. Sr2YIrO6 provides a rare example of the failed dominance of SOC in the iridates.

Four Figures

References in corpus (30)

• 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
• Kitaev-Heisenberg Model on Honeycomb Lattice: Possible Exotic Phases in Iridium Oxides $A_2$IrO${}_3$
• Spin waves and revised crystal structure of honeycomb iridate Na2IrO3
• On the Origin of Zigzag Magnetic Order in Iridium Oxide Na2IrO3
• 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 $\infty$)
• Twisted Hubbard Model for Sr2IrO4: Magnetism and Possible High Temperature Superconductivity
• Quantum spin Hall effect in a transition metal oxide Na2IrO3
• Direct evidence of a zigzag spin chain structure in the honeycomb lattice: A neutron and x-ray diffraction investigation on single crystal $\mathrm{N}{\mathrm{a}}_2\mathrm{Ir}{\mathrm{O}}_3$
• Long range magnetic ordering in Na${}_2$IrO${}_3$
• Exotic phases induced by strong spin-orbit coupling in ordered double perovskites
• Excitonic Magnetism in Van Vleck-type d^4 Mott Insulators
• Crystal field splitting and correlation effect on the electronic structure of A2IrO3
• The magnetic and crystal structures of Sr2IrO4: A neutron diffraction study
• Lattice-Driven Magnetoresistivity and Metal-Insulator Transition in Single-Layered Iridates
• Ferromagnetism in the Mott insulator Ba2NaOsO6
• Na2IrO3 as a molecular orbital crystal
• Valence bond glass on an fcc lattice in the double perovskite Ba2YMoO6
• Magnetic properties of the geometrically frustrated S=1/2 antiferromagnets, La2LiMoO6 and Ba2YMoO6, with the B-site ordered double perovskite structure: Evidence for a Collective Spin Singlet Ground State
• Critical properties of the Kitaev-Heisenberg model
• Magnetic Excitations in the Spin-1 Anisotropic Heisenberg Antiferromagnetic Chain System NiCl${}_2$-4SC(NH${}_2$)${}_2$
• Testing the validity of the strong spin-orbit-coupling limit for octahedrally coordinated iridates in a model system Sr${}_3$CuIrO${}_6$
• A Spin-Orbital Singlet and Quantum Critical Point on the Diamond Lattice: FeSc2S4
• Theory of Half-metallic Ferrimagnetism in Double Perovskites
• Topological Quantum Phase Transition in 5$d$ Transition Metal Oxide Na${}_2$IrO${}_3$
• NaIrO3 - A pentavalent post-perovskite
• Spin-Orbital Locking, Emergent Pseudo-Spin, and Magnetic order in Honeycomb Lattice Iridates
• Partial antiferromagnetism in spin-chain Sr5Rh4O12, Ca5Ir3O12 and Ca4IrO6 single crystals
• Large-J approach to strongly coupled spin-orbital systems

Cited by in corpus (85)

• Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
• The Challenge of Spin-Orbit-Tuned Ground States in Iridates
• Nature of the magnetism of iridium in the double perovskite Sr2CoIrO6
• Ba2YIrO6: A cubic double perovskite material with Ir5+ ions
• Spin-orbital liquid state assisted by singlet-triplet excitation in $J=0$ ground state of Ba${}_3$ZnIr${}_2$O${}_9$
• Determination of Hund's coupling in 5d Oxides using Resonant Inelastic X-ray Scattering
• Lattice-Tuned Magnetism of Ru4+(4d4) Ions in Single-Crystals of the Layered Honeycomb Ruthenates: Li2RuO3 and Na2RuO3
• New Evidence for a Low-Temperature Magnetic Ground State in Double-Perovskite Iridates with Ir5+(5d4) Ions
• The iridium double perovskite Sr2YIrO6 revisited: A combined structural and specific heat study
• Effective magnetic interactions in spin-orbit coupled $d^4$ Mott insulators
• Ferrimagnetism in the double perovskite Ca2FeOsO6: a density functional study
• Relativistic $GW$+BSE study of the optical properties of Ruddlesden-Popper iridates
• Spin-orbit coupling controlled $J=3/2$ electronic ground state in 5$d^3$ oxides
• Unraveling the nature of magnetism of the 5${\mathbf{d}}^4$ double perovskite Ba${}_2$YIrO${}_6$
• Magnetic Excitations in Spin-Orbit Coupled $d^4$ Mott Insulator on Square Lattice
• On the possibility of excitonic magnetism in Ir double perovskites
• Spin-orbit coupling, strong correlation, and insulator-metal transitions: the J${}_{\mathrm{eff}}$ =3\2 ferromagnetic Mott insulator Ba${}_2$NaOsO${}_6$
• Origin of magnetic moments and presence of a resonating valence bond state in Ba${}_2$YIrO${}_6$
• Long-range magnetic interaction and frustration in double perovskite Sr${}_2$NiIrO${}_6$
• Highly anisotropic magnon dispersion in Ca2RuO4: evidence for strong spin orbit coupling
• Doping-Induced Ferromagnetism and Possible Triplet Pairing in d4 Mott Insulators
• Spin-orbit coupled systems in the "atomic" limit: rhenates, osmates, iridates
• New Honeycomb Iridium (V) Oxides: NaIrO${}_3$ and Sr${}_3$CaIr${}_2$O${}_9$
• The Jeff=1/2 antiferromagnet Sr2IrO4: A golden avenue toward new physics and functions
• Interplay between Spin-Orbit Coupling and Strong Correlation Effects: Comparison of Three Osmate Double Perovskites: Ba${}_{2}A$OsO${}_6$ ($A=$Na, Ca, Y)
• Spin-orbit coupling control of anisotropy, ground state and frustration in 5d2 Sr2MgOsO6
• Magnetism out of disorder in a J=0 compound Ba2YIrO6
• Coupling of lattice, spin and intra-configurational excitations of Eu3+ in Eu2ZnIrO6
• Influence of structural distortions on the Ir magnetism in Ba2-xSrxYIrO6 double perovskites
• Dual gate control of bulk transport and magnetism in the spin-orbit insulator Sr2IrO4
• Robust pinning of magnetic moments in pyrochlore iridates
• A New Era of Excitonic Insulators
• Evolution of the structural, magnetic and electronic properties of the triple perovskite Ba${}_3$CoIr${}_2$O${}_9$
• Diluted paramagnetic impurities in nonmagnetic Ba${}_2$YIrO${}_6$
• Density matrix renormalization group study of a three-orbital Hubbard model with spin-orbit coupling in one dimension
• Suppression of magnetism in Ba5AlIr2O11: interplay of Hund's coupling, molecular orbitals and spin-orbit interaction
• Canted ferrimagnetism and giant coercivity in the non-stoichiometric double perovskite La2Ni1.19Os0.81O6
• Direct detection of dimer orbitals in Ba${}_5$AlIr${}_2$O${}_{11}$
• Orbital ordering of Ir-t2g states in the double perovskite Sr2CeIrO6
• Evolution of electronic and magnetic properties in a series of iridate double perovskites Pr${}_{2-x}$Sr${}_x$MgIrO${}_6$ ($x$ = 0, 0.5, 1.0)
• Unconventional magnetism in the 4d${}^4$ based ($S=1$) honeycomb system Ag${}_3$LiRu${}_2$O${}_6$
• Structural and magnetic properties of the 5$d^2$ double perovskites Sr${}_{2}B$ReO${}_6$ ($B$ $=$ Y, In)
• Probing the $J_{eff}=0$ ground state and the Van Vleck paramagnetism of the Ir${}^{5+}$ ions in the layered Sr${}_2$Co${}_{0.5}$Ir${}_{0.5}$O${}_4$
• Fragile singlet ground state magnetism in pyrochlore osmates R2Os2O7 (R=Y and Ho)
• Large exchange bias and low temperature glassy state in frustrated triangular-lattice antiferromagnet Ba${}_3$NiIr${}_2$O${}_9$
• Magnetic excitations in a three-orbital model for the strongly spin-orbit coupled iridates: Effect of mixing between the J=1/2 and 3/2 sectors
• Role of Square Planar Coordination in the Magnetic Properties of Na4IrO4
• Strain induced changes of electronic properties of B-site ordered double perovskite Sr${}_2$CoIrO${}_6$ thin films
• Spin-orbit effects in pentavalent Iridates: Models and materials
• Charge transfer energy in iridates: a hard x-ray photoelectron spectroscopy study
• Spin-orbit coupling in three-orbital Kanamori impurity model and its relevance for transition-metal oxides
• Spin-orbit coupling driven insulating state in hexagonal iridates Sr3MIrO6 (M = Sr, Na and Li)
• Electronic Structures, Magnetism, and Phonon Spectra in the Metallic Cubic Perovskite BaOsO3
• The effect of structural and magnetic disorder on the 3$d$-5$d$ exchange interactions of La${}_{2-x}$Ca${}_x$CoIrO${}_6$
• BCS-BEC crossover in a $(t_{2g}{)}^4$ Excitonic Magnet
• Spin-orbital excitons and their potential condensation in pentavalent iridates
• Spontaneous Spin Textures in Multiorbital Mott Systems
• Orbiton-Phonon coupling in Ir5+(5d4) double perovskite Ba2YIrO6
• Gapless to gapless phase transitions in quantum spin chains
• Revised crystal structure and electronic properties of high dielectric Ba(Fe${}_{1/2}$Nb${}_{1/2}$)O${}_3$ ceramics
• Evidences for the random singlet phase in a new honeycomb iridate SrIr${}_2$O${}_{6-\delta }$
• Evidence for $J_{\mathrm{eff}}=0$ ground state and defect-induced spin glass behaviour in the pyrochlore osmate Y${}_2$Os${}_2$O${}_7$
• Magnetic reorientation transition in a three orbital model for $\mathrm{C}{\mathrm{a}}_2\mathrm{Ru}{\mathrm{O}}_4$ -- Interplay of spin-orbit coupling, tetragonal distortion, and Coulomb interactions
• Evolution of Magnetism in Single-Crystal Ca2Ru1-xIrxO4 (0< x <0.65)
• Electronic excitations in $5d^4$ J=0 Os${}^{4+}$ halides studied by RIXS and optical spectroscopy
• Magnetic phase transitions in quantum spin-orbital liquids
• Correlated Paramagnetism and Interplay of Magnetic and Phononic Degrees of Freedom in 3d-5d Coupled La2CuIrO6
• Magnetization dynamics fingerprints of an excitonic condensate $t_{2g}^4$ magnet
• Small moments without long-range magnetic ordering in the zero-temperature ground state of the double-perovskite iridate Ba${}_2$YIrO${}_6$
• On the electronic ground state of two non-magnetic pentavalent honeycomb iridates
• $J_{eff}$ states in a quasi one dimensional antiferromagnetic spin chain hexagonal Iridates Sr${}_3$MIrO${}_6$ (M=Mg, Zn, Cd): an $ab-initio$ comparative perspective
• Novel Block Excitonic Condensate at $n=3.5$ in a Spin-Orbit Coupled $t_{2g}$ Multiorbital Hubbard Model
• The 3d and 5d electronic structures and orbital hybridization in Ba- and Ca-doped La2CoIrO6 double perovskite
• Varying magnetism in the lattice distorted Y2NiIrO6 and La2NiIrO6
• Structural, magnetic and dielectric properties in 3$d$-5$d$ based Sr${}_2$FeIrO${}_6$ thin films
• Pressure-induced spin-state ordering in Sr${}_2$CoO${}_3$F
• The ground state in a proximity to a possible Kitaev spin liquid: An undistorted honeycomb iridate NaxIrO3 (0.60 < x < 0.80)
• Single crystal growth and magnetism of Sr3NaIrO6 and Sr3AgIrO6: tracking the J = 0 ground state of Ir5+
• Fluorite-related iridate Pr${}_3$IrO${}_7$: Crystal growth, structure, magnetism, thermodynamic, and optical properties
• A Novel ground state in a new dimer iridate Ba13Ir6O30 with Ir6+(5d3) Ions
• J = 0 nonmagnetic insulating state in K${}_2$Os$X_6$ (X = F, Cl and Br)
• Ba-substitution induced evolution of structural and magnetic properties of La2-xBaxCoIrO6 double perovskites
• Local site behavior of the 5d and 4f ions in the frustrated pyrochlore Ho2Os2O7
• Possibility of an unconventional spin state of Ir${}^{4+}$ in Ba${}_{21}$Ir${}_9$O${}_{43}$ single crystal
• Temperature-induced valence-state transition in double perovskite Ba2-xSrxTbIrO6