Spin liquid behavior of a three-dimensional magnetic system Ba${}_3$NiIr${}_2$O${}_9$ with $S$ = 1

Abstract

The quantum spin liquid (QSL) is an exotic phase of magnetic materials where the spins continue to fluctuate without any symmetry breaking down to zero temperature. Among the handful reports of QSL with spin $S\ge$1, examples with magnetic ions on a three-dimensional magnetic lattice are extremely rare since both larger spin and higher dimension tend to suppress quantum fluctuations. In this work, we offer a new strategy to achieve 3-D QSL with high spin by utilizing two types of transition metal ions, both are magnetically active but located at crystallographically inequivalent positions. We design a 3-D magnetic system Ba${}_3$NiIr${}_2$O${}_9$ consisting of interconnected corner shared NiO${}_6$ octahedra and face shared Ir${}_2$O${}_9$ dimer, both having triangular arrangements in \textit{a-b} plane. X-ray absorption spectroscopy measurements confirm the presence of Ni${}^{2+}$ ($S$=1). Our detailed thermodynamic and magnetic measurements reveal that this compound is a realization of gapless QSL state down to at least 100 mK. Ab-initio calculations find a strong magnetic exchange between Ir and Ni sublattices and in-plane antiferromagnetic coupling between the dimers, resulting in dynamically fluctuating magnetic moments on both the Ir and Ni sublattice.

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References in corpus (38)

• Anyons in an exactly solved model and beyond
• Quantum Spin Liquids
• Novel Jeff = 1/2 Mott State Induced by Relativistic Spin-Orbit Coupling in Sr2IrO4
• Quantum Spin Liquid States
• Quantum Spin Liquids
• Kitaev quantum spin liquid - concept and materialization
• A Field Guide to Spin Liquids
• Spin-Liquid State in the S = 1/2 Hyperkagome Antiferromagnet Na4Ir3O8
• Spin-polarized muons in condensed matter physics
• Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO${}_4$
• Unusual ordered phases of highly frustrated magnets: a review
• First- principle calculations of magnetic interactions in correlated systems
• Excitonic Magnetism in Van Vleck-type d^4 Mott Insulators
• Experimental signatures of a three-dimensional quantum spin liquid in effective spin-1/2 Ce2Zr2O7 pyrochlore
• Physical realization of a quantum spin liquid based on a novel frustration mechanism
• Theory of quasiparticle spectra for Fe, Co, and Ni: bulk and surface
• High pressure sequence of Ba_3NiSb_2O_9 structural phases: new $S=1$ quantum spin-liquids based on Ni^{2+}
• Spin-liquid-like state in a spin-1/2 square-lattice antiferromagnet perovskite induced by $d^{10}$-$d^0$ cation mixing
• Possible ferro-spin nematic order in NiGa2S4
• Strong quantum fluctuations in a quantum spin liquid candidate with a Co-based triangular lattice
• Evidence for a three-dimensional quantum spin liquid in PbCuTe${}_2$O${}_6$
• Spin liquid behaviour in Jeff=1/2 triangular lattice Ba3IrTi2O9
• Continuum of quantum fluctuations in a three-dimensional $S=1$ Heisenberg magnet
• Magnetic properties and heat capacity of the three-dimensional frustrated S=1/2 antiferromagnet PbCuTe2O6
• Spin-orbital liquid state assisted by singlet-triplet excitation in $J=0$ ground state of Ba${}_3$ZnIr${}_2$O${}_9$
• From Spin Glass to Quantum Spin Liquid Ground States in Molybdate Pyrochlores
• The iridium double perovskite Sr2YIrO6 revisited: A combined structural and specific heat study
• Evidence for a spinon Fermi surface in the triangular S=1 quantum spin liquid Ba${}_3$NiSb${}_2$O${}_9$
• Randomness-induced quantum spin liquid behavior in the $s=$1/2 bond-random Heisenberg antiferromagnet on the pyrochlore lattice
• Persistent low-temperature spin dynamics in the mixed-valence iridate Ba${}_3$InIr${}_2$O${}_9$
• Origin of magnetic moments and presence of a resonating valence bond state in Ba${}_2$YIrO${}_6$
• Frustrated Spin One On A Diamond Lattice
• Lattice distortion effects on the frustrated spin-1 triangular-antiferromagnet A3NiNb2O9 (A = Ba, Sr and Ca)
• Thermodynamics of a frustrated quantum magnet on a square lattice
• Ba${}_3$M${}_x$Ti${}_{3-x}$O${}_9$(M = Ir, Rh): A family of 5\textit{\textcolor{black}{d}}/4\textit{\textcolor{black}{d}}-based, diluted quantum spin liquids
• Glass-like ordering and spatial inhomogeneity of magnetic structure in Ba3FeRu2O9 : The role of Fe/Ru-site disorder
• Depth dependent spin dynamics of canonical spin glass films: A low-energy muon spin rotation study
• Sc_{2}Ga_{2}CuO_{7}: A possible Quantum spin liquid near the percolation threshold

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• Quasimolecular electronic structure of the spin-liquid candidate Ba${}_3$InIr${}_2$O${}_9$
• RIXS interferometry and the role of disorder in the quantum magnet Ba${}_3$Ti${}_{3-x}$Ir${}_x$O${}_9$
• Gapless dynamic magnetic ground state in the charge-gapped trimer iridate Ba${}_4$NbIr${}_3$O${}_{12}$
• Novel quantum spin liquid ground state in the trimer rhodate Ba${}_4$NbRh${}_3$O${}_{12}$
• Disorder driven cluster glass state in a geometrically frustrated hexagonal perovskite
• Orbital-Selective Spin-Orbit Mott Insulator in Fractional Valence Iridate La${}_3$Ir${}_3$O${}_{11}$