Strong antiferromagnetic interaction owing to a large trigonal distortion in the spin-orbit-coupled honeycomb lattice iridate CdIrO${}_3$

Abstract

We investigated the magnetic properties of the ilmenite-type iridate CdIrO${}_3$ with a honeycomb lattice formed by Ir${}^{4+}$ ions prepared via a solid-state metathesis. The magnetization measurements with using the powder sample reveal a large effective magnetic moment and a fairly strong antiferromagnetic interaction, indicating a deviation from the Kitaev model. Considering the relationship between magnetism and crystal structure in CdIrO${}_3$ with comparing with the other ilmenite-type iridates ZnIrO${}_3$ and MgIrO${}_3$, we conclude that insulating CdIrO${}_3$ cannot be describe as a $J_{\mathrm{eff}}=1/2$ Mott state owing to a metathetically-stabilized large trigonal distortion of IrO${}_6$ octahedra.

arXiv comment6 pages, 4 figures, accepted for publication in Physical Review Materials

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Cited by in corpus (20)

• Beyond Kitaev physics in strong spin-orbit coupled magnets
• Ground-state phase diagram of spin-$S$ Kitaev-Heisenberg models
• Kitaev magnetism through the prism of lithium iridate
• Electronic and magnetic properties of iridium ilmenites $A$IrO${}_3$ ($A=$ Mg, Zn, and Mn)
• First demonstration of tuning between the Kitaev and Ising limits in a honeycomb lattice
• Quantum paramagnetism in the hyperhoneycomb Kitaev magnet $\beta$-ZnIrO${}_3$
• CaCo${}_2$TeO${}_6$: A topochemically prepared 3$d^7$ honeycomb Kitaev magnet
• Stabilization of a honeycomb lattice of IrO${}_6$ octahedra in superlattices with ilmenite-type MnTiO${}_3$
• Asymmetric modulation of Majorana excitation spectra and nonreciprocal thermal transport in the Kitaev spin liquid under a staggered magnetic field
• Active orbital degree of freedom and potential spin-orbit-entangled moments in Kitaev magnet candidate BaCo${}_2$(AsO${}_4$)${}_2$
• Ground-State Phase Diagram of the Kitaev-Heisenberg Model on a Three-dimensional Hyperhoneycomb Lattice
• High-temperature magnetic anomaly via suppression of antisite disorder through synthesis route modification in a Kitaev candidate Cu${}_2$IrO${}_3$
• Topological Majorana flat bands in the Kitaev model on a Bishamon-kikko lattice
• Schwinger boson theory for $S=1$ Kitaev quantum spin liquids
• Metallic ruthenium ilmenites: first-principles study of MgRuO${}_3$ and CdRuO${}_3$
• Honeycomb lattice iridate on the verge of Mott-collapse
• Signatures of a Majorana-Fermi surface in the Kitaev magnet Ag${}_3$LiIr${}_2$O${}_6$
• Evolution of crystal field and intraionic interactions in the ilmenite $A$IrO${}_3$ ($A$ = Mg, Zn, Cd) and hyperhoneycomb $\beta$-ZnIrO${}_3$
• Crystalline water intercalation into the Kitaev honeycomb cobaltate Na${}_2$Co${}_2$TeO${}_6$
• Magnetic field effects on the Kitaev model coupled to environment