Experimental signatures of a three-dimensional quantum spin liquid in effective spin-1/2 Ce2Zr2O7 pyrochlore

Abstract

A quantum spin liquid (QSL) is a state of matter where unpaired electrons' spins in a solid are quantum entangled, but do not show magnetic order in the zero-temperature limit. Because such a state may be important to the microscopic origin of high-transition temperature superconductivity and useful for quantum computation, the experimental realization of QSL is a long-sought goal in condensed matter physics. Although neutron scattering experiments on the two-dimensional (2D) spin-1/2 kagome-lattice ZnCu3(OD)6Cl2 and effective spin-1/2 triangular lattice YbMgGaO4 have found evidence for a continuum of magnetic excitations, the hallmark of a QSL carrying 'fractionalized quantum excitations', at very low temperature, magnetic and nonmagnetic site chemical disorder complicates the interpretation of the data. Recently, the three-dimensional (3D) Ce3+ pyrochlore lattice Ce2Sn2O7 has been suggested as a clean, effective spin-1/2 QSL candidate, but there is no evidence of a spin excitation continuum. Here we use thermodynamic, muon spin relaxation (μ SR), and neutron scattering experiments on single crystals of Ce2Zr2O7, a compound isostructural to Ce2Sn2O7, to demonstrate the absence of magnetic ordering and the presence of a spin excitation continuum at 35 mK, consistent with the expectation of a QSL. Since our neutron diffraction and diffuse scattering measurements on Ce2Zr2O7 reveal no evidence of oxygen deficiency and magnetic/nonmagnetic ion disorder as seen in other pyrochlores, Ce2Zr2O7 may be the first example of a 3D QSL material with minimum magnetic and nonmagnetic chemical disorder.

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• Quantum Spin Ice Dynamics in the Dipole-Octupole Pyrochlore Magnet Ce${}_2$Zr${}_2$O${}_7$
• Candidate Quantum Spin Liquid in the Ce\textsuperscript{3+} Pyrochlore Stannate Ce${}_2$Sn${}_2$O${}_7$
• Fluctuations and all-in$-$all-out ordering in dipole-octupole Nd2Zr2O7
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Cited by in corpus (113)

• The Chemistry of Quantum Spin Liquids
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• Designer Magnetism in High Entropy Oxides
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• Sleuthing out exotic quantum spin liquidity in the pyrochlore magnet Ce${}_2$Zr${}_2$O${}_7$
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• Experimental signatures of quantum and topological states in frustrated magnetism
• Magnetic field induced quantum spin liquid in the two coupled trillium lattices of K${}_2$Ni${}_2$(SO${}_4$)${}_3$
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• Intrinsic quantum Ising model on a triangular lattice magnet TmMgGaO${}_4$ and beyond
• Pyrochlore U(1) spin liquid of mixed symmetry enrichments in magnetic fields
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• Ground state phase diagram of dipolar-octupolar pyrochlores
• Distinguishing dipolar and octupolar quantum spin ices using contrasting magnetostriction signatures
• Kitaev Quantum Spin Liquids
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• Crystal-field states and defect levels in candidate quantum spin ice Ce${}_2$Hf${}_2$O${}_7$
• Uncovering footprints of dipolar-octupolar quantum spin ice from neutron scattering signatures
• Magnetic field effects on the quantum spin liquid behaviors of NaYbS${}_2$
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• Continuous spin excitations in the three-dimensional frustrated magnet K2Ni2(SO4)3
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• Spin liquid state in a rare-earth hyperkagome lattice
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• Crystal fields and magnetic structure of the Ising antiferromagnet Er${}_3$Ga${}_5$O${}_{12}$
• Science Case for the new High-Intensity Muon Beams HIMB at PSI
• Symmetry fractionalization in the gauge mean-field theory of quantum spin ice
• Dipolar spin ice regime proximate to an all-in-all-out Néel ground state in the dipolar-octupolar pyrochlore Ce${}_2$Sn${}_2$O${}_7$
• Worm-algorithm-type Simulation of Quantum Transverse-Field Ising Model
• Disorder-induced spin-liquid-like behavior in kagome-lattice compounds
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• Symmetric $\mathrm{U}(1)$ and ${\mathbb{Z}}_2$ spin liquids on the pyrochlore lattice
• Quantum Spin Ice Response to a Magnetic Field in the Dipole-Octupole Pyrochlore Ce${}_2$Zr${}_2$O${}_7$
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• Spectroscopic signatures of fractionalization in octupolar quantum spin ice
• $\mu$SR study of triangular Ising antiferromagnet ErMgGaO${}_4$
• Emergence of spinons in layered trimer iridate Ba4Ir3O10
• Topological thermal Hall effect of "magnetic monopoles" in pyrochlore U(1) spin liquid
• Extended Coulomb liquid of paired hardcore boson model on a pyrochlore lattice
• Beyond magnons in Nd2ScNbO7: An Ising pyrochlore antiferromagnet with all in all out order and random fields
• Magnetic properties and spin dynamics in a spin-orbit driven Jeff= 1/2 triangular lattice antiferromagnet
• Spin liquid behavior of a three-dimensional magnetic system Ba${}_3$NiIr${}_2$O${}_9$ with $S$ = 1
• Signatures of hidden octupolar order from nonlinear Hall effects
• Magnetism and spin dynamics of an S=3/2 frustrated trillium lattice antiferromagnet K2CrTi(PO4)3
• Dynamic Spin Fluctuations in the Frustrated Spin Chain Compound Li${}_3$Cu${}_2$SbO${}_6$
• Quantum critical spin-liquid-like behavior in S = 1/2 quasikagome lattice CeRh1-xPdxSn investigated using muon spin relaxation and neutron scattering
• Epitaxial stabilization of (111)-oriented frustrated quantum pyrochlore thin films
• Electronic and structural properties of RbCeX${}_2$ (X${}_2$: O${}_2$, S${}_2$, SeS, Se${}_2$, TeSe, Te${}_2$)
• Structure and magnetic studies of geometrically frustrated disordered pyrochlores A${}_2$Zr${}_2$O${}_7$: (A = Eu, Gd, Er)
• Hamiltonian inference from dynamical excitations in confined quantum magnets
• $\mu$SR Study of the Dipole-Octupole Quantum Spin Ice Candidate Ce${}_2$Zr${}_2$O${}_7$
• Magnetic properties and magnetic structure of the frustrated quasi-one-dimensional antiferromagnet SrCuTe${}_2$O${}_6$
• Evaluating the Effects of Structural Disorder on the Magnetic Properties of Nd${}_2$Zr${}_2$O${}_7$
• Experimental observation of magnetic dimers in diluted Yb:YAlO${}_3$
• Emergent photons and fractionalized excitations in a quantum spin liquid
• Quantum many-body scars in spin-1 Kitaev chain with uniaxial single-ion anisotropy
• Distinguishing thermodynamics and spectroscopy for octupolar U(1) spin liquid of Ce-pyrochlores
• The magnetic behaviour of Dy${}_2$Ir${}_2$O${}_7$ -- beyond the mean field approximation
• A pseudofermion functional renormalization group study of dipolar-octupolar pyrochlore magnets
• Magnetic field-induced softening of spin waves and hard-axis order in Kondo-lattice ferromagnet CeAgSb${}_2$
• Classification of Classical Spin Liquids: Topological Quantum Chemistry and Crystalline Symmetry
• Ultrasound detection of emergent photons in generic quantum spin ice
• Origin of the hidden energy scale and the $f$-ratio in geometrically frustrated magnets
• Finite Temperature Dynamics in 0-Flux and $\pi$-Flux Quantum Spin Ice: Self-Consistent Exclusive Boson Approach
• Disorder-induced excitation continuum in a spin-1/2 cobaltate on a triangular lattice
• Hybrid Dyons, inverted Lorentz force and magnetic Nernst effect in quantum spin ice
• Dynamical Signatures of Rank-2 $U(1)$ Spin Liquids
• Dynamical Axions in $U(1)$ Quantum Spin Liquids
• Magnetic field and thermal Hall effect in a pyrochlore U(1) quantum spin liquid
• Beyond Single Tetrahedron Physics of Breathing Pyrochlore Compound Ba3Yb2Zn5O11
• Spin ice in a general applied magnetic field: Kasteleyn transition, magnetic torque and rotational magnetocaloric effect
• Structural and spin-glass properties of single crystal $J_{eff}$ = 1/2 pyrochlore antiferromagnet NaCdCo${}_2$F${}_7$ : correlating $T_f$ with magnetic-bond-disorder
• Structural and magnetic characterization of CeTa${}_7$O${}_{19}$ and YbTa${}_7$O${}_{19}$ with two-dimensional pseudospin-1/2 triangular lattice
• Dipolar-octupolar correlations and hierarchy of exchange interactions in Ce${}_2$Hf${}_2$O${}_7$
• Exploiting polarization dependence in two dimensional coherent spectroscopy: examples of Ce${}_2$Zr${}_2$O${}_7$ and Nd${}_2$Zr${}_2$O${}_7$
• Linear scaling relationship of Néel temperature and dominant magnons in pyrochlore ruthenates
• Traversing the pyrochlore stability diagram; microwave-assisted synthesis and discovery of mixed B-site Ln${}_2$InSbO${}_7$ family
• Short-range Spin Freezing State in the Double Trillium Lattice Spin-Liquid Candidate KSrFe${}_2$(PO${}_4$)${}_3$ Revealed via ${}^{31}$P NMR
• Thermodynamics of the dipole-octupole pyrochlore magnet Ce${}_2$Hf${}_2$O${}_7$ in applied magnetic fields
• Two-Peak Heat Capacity Accounts for $R\ln (2)$ Entropy and Ground State Access in the Dipole-Octupole Pyrochlore Ce${}_2$Hf${}_2$O${}_7$
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• Signatures of spinon dynamics and phase structure of dipolar-octupolar quantum spin ices in two-dimensional coherent spectroscopy
• Single Crystal Diffuse Neutron Scattering Study of the Dipole-Octupole Quantum Spin Ice Candidate Ce${}_2$Zr${}_2$O${}_7$: No Apparent Octupolar Correlations Above $T=0.05$ K
• Magnetic properties and field-induced phenomena in the Jeff = 1/2 distorted kagome antiferromagnet
• Possible realization of a randomness-driven quantum disordered state in an S = 1/2 antiferromagnet Sr3CuTa2O9
• Inelastic neutron scattering on Ce pyrochlores: Signatures of electric monopoles
• Coexistence of anomalous spin dynamics and weak magnetic order in a chiral trillium lattice K2FeSn(PO4)3
• Magnetic Field Response of Dipolar-Octupolar Quantum Spin Ice
• Local spin dynamics in geometrically frustrated Mo pyrochlore antiferromagnet Lu${}_2$Mo${}_2$O${}_{5-y}$N${}_2$
• Magnetically disordered ground state in the triangular-lattice antiferromagnets Rb${}_3$Yb(VO${}_4$)${}_2$ and Cs${}_3$Yb(VO${}_4$)${}_2$
• Coulombic antiferromagnet in spin-1/2 pyrochlores with dipole-octupole doublets
• Competition between $d$-wave and $d$+$is$-wave superconductivity in the Hubbard model on a checkerboard lattice
• Explaining the extra crystal field mode in ACeX2
• Easy-plane ferromagnetic ordering and crystal-field ground state in the Kondo lattice CeCuSi
• Spinon band flattening by its emergent gauge field in quantum kagome ice
• Disorder-induced spin excitation continuum and spin-glass ground state in the inverse spinel CuGa${}_2$O${}_4$
• Emergent Dispersive Multipolar Excitations in NaErSe${}_2$
• Field-induced magnetic order in DyTa${}_7$O${}_{19}$ with two-dimensional pseudospin-$\frac{1}{2}$ triangular lattice
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• Influence of controlled disorder on the dipolar spin ice state of Ho-based pyrochlores
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