Rare-earth chalcogenides: A large family of triangular lattice spin liquid candidate

Abstract

Frustrated quantum magnets are expected to host many exotic quantum spin states like quantum spin liquid (QSL), and have attracted numerous interest in modern condensed matter physics. The discovery of the triangular lattice spin liquid candidate YbMgGaO${}_4$ stimulated an increasing attention on the rare-earth-based frustrated magnets with strong spin-orbit coupling. Here we report the synthesis and characterization of a large family of rare-earth chalcogenides AReCh${}_2$ (A = alkali or monovalent ions, Re = rare earth, Ch = O, S, Se). The family compounds share the same structure (R$\bar{3}$m) as YbMgGaO${}_4$, and antiferromagnetically coupled rare-earth ions form perfect triangular layers that are well separated along the $c$-axis. Specific heat and magnetic susceptibility measurements on NaYbO${}_2$, NaYbS${}_2$ and NaYbSe${}_2$ single crystals and polycrystals, reveal no structural or magnetic transition down to 50mK. The family, having the simplest structure and chemical formula among the known QSL candidates, removes the issue on possible exchange disorders in YbMgGaO${}_4$. More excitingly, the rich diversity of the family members allows tunable charge gaps, variable exchange coupling, and many other advantages. This makes the family an ideal platform for fundamental research of QSLs and its promising applications.

arXiv comment8 pages, 4 figures; The updated supplementary materials (10 pages) can be found at http://cpl.iphy.ac.cn/fileup/0256-307X/PDF/0256-307X-2018-35-11-117501-Suppl.pdf

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Cited by in corpus (111)

• Field-tunable quantum disordered ground state in the triangular lattice antiferromagnet NaYbO${}_2$
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• Anisotropic field-induced ordering in the triangular-lattice quantum spin liquid NaYbSe${}_2$
• Dirac Spin Liquid on the Spin-1/2 Triangular Heisenberg Antiferromagnet
• Field-induced instability of the quantum-spin-liquid ground state in the $J_{\mathrm{eff}}=\frac{1}{2}$ triangular-lattice compound NaYbO${}_2$
• Anisotropic-Exchange Magnets on a Triangular Lattice: Spin Waves, Accidental Degeneracies, and Dual Spin Liquids
• Spinon Fermi surface spin liquid in a triangular lattice antiferromagnet NaYbSe${}_2$
• Quantum spin liquid in the Ising triangular-lattice antiferromagnet neodymium heptatantalate
• Field-induced magnetic transition and spin fluctuation in quantum spin liquid candidate CsYbSe${}_2$
• Magnetic field induced intermediate quantum spin-liquid with a spinon Fermi surface
• A Class of Compounds Featuring Frustrated Triangular Magnetic Lattice CsRESe${}_2$ (RE=La-Lu): Quantum Spin-Liquid Candidates
• Spin excitations in the frustrated triangular lattice antiferromagnet NaYbO${}_2$
• Intertwined dipolar and multipolar order in the triangular-lattice magnet TmMgGaO${}_4$
• Crystalline Electric-Field Excitations in Quantum Spin Liquids Candidate $NaYbS{e}_2$
• Topological characterization of Lieb-Schultz-Mattis constraints and applications to symmetry-enriched quantum criticality
• Experimental signatures of quantum and topological states in frustrated magnetism
• Mott Transition and Superconductivity in Quantum Spin Liquid Candidate NaYbSe${}_2$
• Crystal field Hamiltonian and anisotropy in KErSe2 and CsErSe2
• Field-Induced Spin Excitations in the Spin-1/2 Triangular-Lattice Antiferromagnet CsYbSe${}_2$
• Complete field-induced spectral response of the spin-1/2 triangular-lattice antiferromagnet CsYbSe${}_2$
• Realization of Quantum Dipoles in Triangular Lattice Crystal Ba3Yb(BO3)3
• LiYbSe2: Frustrated Magnetism in a New Pyrochlore Lattice
• Synthesis, magnetization and heat capacity of triangular lattice materials NaErSe${}_2$ and KErSe${}_2$
• Non-linear magnons and exchange Hamiltonians of delafossite proximate quantum spin liquids
• Single-site magnetic anisotropy governed by inter-layer cation charge imbalance in triangular-lattice AYbX${}_2$
• Synthesis and Anisotropic Magnetism in Quantum Spin Liquid Candidates $A$YbSe${}_2$ ($A$ = K and Rb)
• Frustration enhanced by Kitaev exchange in a ${\tilde{\mathbf{j}}}_{\text{eff}}=\frac{1}{2}$ triangular antiferromagnet
• Rare-earth chalcohalides: A family of van der Waals layered Kitaev spin liquid candidates
• Effective Magnetic Hamiltonian at Finite Temperatures for Rare Earth Chalcogenides
• Anisotropic exchange coupling and ground state phase diagram of Kitaev compound YbOCl
• Frustrated Heisenberg $J_1-J_2$ model within the stretched diamond lattice of LiYbO2
• Long-range magnetic order in the $\tilde{S}=1/2$ triangular lattice antiferromagnet KCeS${}_2$
• Magnetic field effects on the quantum spin liquid behaviors of NaYbS${}_2$
• Low-energy Spin Dynamics of Quantum Spin Liquid Candidate $NaYbS{e}_2$
• NMR study of the spin excitations in the frustrated antiferromagnet Yb(BaBO${}_3$)${}_3$ with a triangular lattice
• A $j_{\mathrm{eff}}=1/2$ Kitaev material on the triangular lattice: The case of NaRuO${}_2$
• Double Magnon-Roton Excitations in the Triangular-Lattice Spin Supersolid
• Continuum of spin excitations in an ordered magnet
• Quantum Spin Dynamics Due to Strong Kitaev Interactions in the Triangular-Lattice Antiferromagnet CsCeSe${}_2$
• Magnetic properties of triangular lattice antiferromagnets Ba3RB9O18 (R = Yb, Er)
• Stripe antiferromagnetic ground state of ideal triangular lattice KErSe${}_2$
• Disorder-induced spin-liquid-like behavior in kagome-lattice compounds
• Stripe-yz magnetic order in the triangular-lattice antiferromagnet KCeS2
• Magnetic properties and signatures of moment ordering in triangular lattice antiferromagnet KCeO${}_2$
• Rare-Earth Chalcogenides: An Inspiring Playground For Exploring Frustrated Magnetism
• Comprehensive study of the global phase diagram in the triangular $J$-$K$-$\Gamma$ model
• Disorder-induced broadening of the spin waves in a triangular-lattice quantum-spin-liquid candidate YbZnGaO${}_4$
• Mechanism of the insulator-to-metal transition and superconductivity in the spin liquid candidate NaYbSe${}_2$ under pressure
• Fingerprinting Triangular-Lattice Antiferromagnet by Excitation Gaps
• Exact diagonalization study of the anisotropic Heisenberg model related to YbMgGaO${}_4$
• Unravelling the signatures of effective spin 1/2 moments in CeVO4: Magnetization and Heat Capacity study
• Crystal-electric-field excitations in a quantum-spin-liquid candidate NaErS${}_2$
• Antiferromagnetism and crystalline-electric field excitations in tetragonal NaCeO2
• Exchange renormalized crystal field excitation in a quantum Ising magnet KTmSe${}_2$
• Effective Spin-1/2 Moments on a Yb${}^{3+}$ Triangular Lattice: an ESR Study
• Diluting a triangular-lattice spin liquid: Synthesis and characterization of NaYb${}_{1-x}$Lu${}_x$S${}_2$ single crystals
• Ising-type quantum spin liquid state in PrMgAl${}_{11}$O${}_{19}$
• Magnetic properties and spin dynamics in a spin-orbit driven Jeff= 1/2 triangular lattice antiferromagnet
• Tracking the evolution from isolated dimers to many-body entanglement in NaLu${}_x$Yb${}_{1-x}$Se${}_2$
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• Frustrated Magnetism in Triangular Lattice TlYbS${}_2$ Crystals Grown via Molten Flux
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• Learning Effective Spin Hamiltonian of Quantum Magnet
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• Constraining the Parameter Space of a Quantum Spin Liquid Candidate in Applied Field with Iterative Optimization
• Evidence of Kitaev interaction in the monolayer 1T-CrTe${}_2$
• Structural, magnetic and magnetocaloric properties of triangular-lattice transition-metal phosphates
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• Stacking-induced magnetic frustration and spiral spin liquid
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• Crystal-Field--Driven Magnetoelectricity in the Triangular Quantum Magnet CeMgAl${}_{11}$O${}_{19}$
• Effective Model for Rare-earth Kitaev Materials and its Classical Monte Carlo Simulation
• Magnetic Properties of an Effective Spin-$\frac{1}{2}$ Triangular-Lattice Compound LiYbS${}_2$
• Evidence for a gapless Dirac spin-liquid ground state in a spin-3/2 triangular-lattice antiferromagnet
• Magnetically disordered ground state in the triangular-lattice antiferromagnets Rb${}_3$Yb(VO${}_4$)${}_2$ and Cs${}_3$Yb(VO${}_4$)${}_2$
• Gapless spinon excitations emerging from a multipolar transverse field in the triangular-lattice Ising antiferromagnet NaTmSe2
• Interplay of magnetic ordering and charge transport in a distorted ScAl${}_3$C${}_3$-type GdZn${}_3$As${}_3$
• Finite Temperature Magnetism in the Triangular Lattice Antiferromagnet KErTe2
• Quantum selection of order and dynamic properties of Kitaev-Heisenberg ferromagnet on a triangular lattice
• Interplay of short-range bond order and A-type antiferromagnetic order in metallic triangular lattice GdZn${}_3$P${}_3$
• Emergent Dispersive Multipolar Excitations in NaErSe${}_2$
• Exact diagonalization study of triangular Heisenberg model with four-spin ring-exchange interaction
• Disorder-induced spin excitation continuum and spin-glass ground state in the inverse spinel CuGa${}_2$O${}_4$
• Anomalous enhancement of magnetism by nonmagnetic doping in the honeycomb-lattice antiferromagnet ErOCl
• Field-induced magnetic order in DyTa${}_7$O${}_{19}$ with two-dimensional pseudospin-$\frac{1}{2}$ triangular lattice
• Magnetic-Field Dependence of Paramagnetic Properties Investigated by 63/65Cu-NMR on the Yb Zigzag-Chain Semiconductor YbCuS2
• Effects of the Crystalline Electric Field in the $KErT{e}_2$ Quantum Spin Liquid Candidate
• Electrical transport and magnetic properties of the triangular-lattice compound Zr${}_2$NiP${}_2$
• Universal fluctuating regime in triangular chromate antiferromagnets
• A new family of disorder-free Rare-Earth-based kagomé lattice magnets: structure and magnetic characterizations of RE3BWO9 (RE=Pr, Nd, Gd-Ho) Boratotungstates
• Hidden Frustration in Double-Perovskite CaFeTi${}_2$O${}_6$