Possible gapless spin liquid in a rare-earth kagomé lattice magnet Tm${}_3$Sb${}_3$Zn${}_2$O${}_{14}$

Abstract

We report the thermodynamic and muon spin relaxation ($\mu$SR) evidences for a possible gapless spin liquid in Tm${}_3$Sb${}_3$Zn${}_2$O${}_{14}$, with the rare-earth ions Tm${}^{3+}$ forming a two-dimensional kagomé lattice. We extract the magnetic specific heat of Tm${}_3$Sb${}_3$Zn${}_2$O${}_{14}$ by subtracting the phonon contribution of the non-magnetic isostructural material La${}_3$Sb${}_3$Zn${}_2$O${}_{14}$. We obtain a clear linear-$T$ temperature dependence of magnetic specific heat at low temperatures, with the heat-capacity coefficient $\gamma$ = 26.6(1) mJ mol-Tm${}^{-1}$ K${}^{-2}$ in the zero temperature limit. No long-range magnetic order was observed down to 0.35 K in the heat capacity measurement. A broad hump around 9 K was observed in the zero field magnetic specific heat and is gradually suppressed in the magnetic fields that also create a spin gap in the specific heat. The absence of magnetic order is further confirmed by the $\mu$SR measurement down to 20 mK. We find that the spin-lattice relaxation time remains constant down to the lowest temperatures. We point out that the physics in Tm${}_3$Sb${}_3$Zn${}_2$O${}_{14}$ is fundamentally different from the Cu-based herbertsmithite and propose spin liquid ground states with non-Kramers doublets on the kagomé lattice to account for the experimental results.

arXiv comment4 figures

References in corpus (56)

• Quantum Spin Liquid States
• Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
• Spin Liquid State in an Organic Mott Insulator with Triangular Lattice
• Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
• Projected wavefunction study of Spin-1/2 Heisenberg model on the Kagome lattice
• Spin-Liquid State in the S = 1/2 Hyperkagome Antiferromagnet Na4Ir3O8
• Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
• U(1) Gauge Theory of the Hubbard Model : Spin Liquid States and Possible Application to k-(BEDT-TTF)_2 Cu_2 (CN)_3
• Quantum Excitations in Quantum Spin Ice
• Rare-earth triangular lattice spin liquid: a single-crystal study of YbMgGaO${}_4$
• Evidence for a spinon Fermi surface in a triangular lattice quantum spin liquid candidate
• Evidence for a Gapped Spin-Liquid Ground State in a Kagome Heisenberg Antiferromagnet
• Gapless quantum spin liquid ground state in the two-dimensional spin-1/2 triangular antiferromagnet YbMgGaO${}_4$
• Magnetic and Thermodynamic Properties of the Collective Paramagnet-Spin Liquid Pyrochlore Tb2Ti2O7
• Disorder-Induced Mimicry of a Spin Liquid in YbMgGaO${}_4$
• $\mu$SR evidence for the U(1) quantum spin liquid ground state in the triangular antiferromagnet YbMgGaO${}_4$
• Valence Bonds in Random Quantum Magnets: Theory and Application to YbMgGaO4
• Crystalline Electric Field Randomness in the Triangular Lattice Spin-Liquid YbMgGaO${}_4$
• An anisotropic spin model of strong spin-orbit-coupled triangular antiferromagnets
• Spin-glass ground state in a triangular-lattice compound YbZnGaO${}_4$
• Quantum Melting of Spin Ice: Emergent Cooperative Quadrupole and Chirality
• Correlated impurities and intrinsic spin liquid physics in the kagome material Herbertsmithite
• Gapped spin-1/2 spinon excitations in a new kagome quantum spin liquid compound Cu${}_3$Zn(OH)${}_6$FBr
• Spin-orbit effects in Na${}_4$Ir${}_3$O${}_8$, a hyper-kagomé lattice antiferromagnet
• Absence of magnetic thermal conductivity in the quantum spin liquid candidate YbMgGaO4
• Emergence of inhomogeneous moments from spin liquid in the triangular-lattice Mott insulator $\kappa$-(ET)${}_2$Cu${}_2$(CN)${}_3$
• Scaling and data collapse from local moments in frustrated disordered quantum spin systems
• Disorder-Induced Entanglement in Spin Ice Pyrochlores
• Muon Spin Relaxation Investigation of the Spin Dynamics of Geometrically Frustrated Antiferromagnets Y2Mo2O7 and Tb2Mo2O7 Static Critical Behavior of the Spin-Freezing
• Quantum criticality in a metallic spin liquid
• Disordered Route to the Coulomb Quantum Spin Liquid: Random Transverse Fields on Spin Ice in Pr${}_2$Zr${}_2$O${}_7$
• Structural distortion and the spin liquid state in Tb2Ti2O7
• Na4Ir3O8 as a 3D spin liquid with fermionic spinons
• Theory of a competitive spin liquid state for weak Mott insulators on the triangular lattice
• Removing the spin ice cap: magnetic ground states of rare earth tripod kagome lattice Mg${}_2$RE${}_3$Sb${}_3$O${}_{14}$ (RE = Gd, Dy, Er)
• Emergent Order in the Kagome Ising Magnet Dy3Mg2Sb3O14
• The Spinon Fermi Surface U(1) Spin Liquid in a Spin-Orbit-Coupled Triangular Lattice Mott Insulator YbMgGaO4
• An anisotropic local modification of crystal field levels in Pr-based pyrochlores: a muon-induced effect modelled using density functional theory
• Hierarchy of exchange interactions in the triangular-lattice spin-liquid YbMgGaO${}_4$
• Fractionalized excitations in the partially magnetized spin liquid candidate YbMgGaO4
• Magnetic monopole condensation in pyrochlore ice quantum spin liquid: application to Pr2Ir2O7 and Yb2Ti2O7
• Scalar Chiral Spin-1/2 Order on Kagome Lattices in Nd3Sb3Mg2O14
• Short-range correlations in the magnetic ground state of Na4Ir3O8
• Dielectric anomalies and interactions in the 3D quadratic band touching Luttinger semimetal Pr${}_2$Ir${}_2$O${}_7$
• The effect of spin-orbit coupling on the effective-spin correlation in YbMgGaO4
• Quantum spin fluctuations in the spin liquid state of Tb2Ti2O7
• Detecting spin fractionalization in a spinon Fermi surface spin liquid
• Structural and magnetic properties of two branches of the Tripod Kagome Lattice family A${}_2$RE${}_3$Sb${}_3$O${}_{14}$ (A = Mg, Zn; RE = Pr, Nd, Gd, Tb, Dy, Ho, Er, Yb)
• Semiclassical ground-state phase diagram and multi-Q phase of a spin-orbit coupled model on triangular lattice
• Dirac's "magnetic monopole" in pyrochlore ice U(1) spin liquids: Spectrum and classification
• Microscopic phase separation in triangular-lattice quantum spin magnet kappa-(BEDT-TTF)2Cu2(CN)3 probed by muon spin relaxation
• Anomalous enhancement of Wilson ratio in a quantum spin liquid with strong spin-orbital entanglement: the case of Na4Ir3O8
• Unstable Spin-Ice Order in the Stuffed Metallic Pyrochlore Pr${}_{2+x}$Ir${}_{2-x}$O${}_{7-\delta }$
• Spinon magnetic resonance of quantum spin liquids
• Fano Resonances in the Infrared Spectra of Phonons in Hyper-Kagome Na_3Ir_3O_8
• Heat transport in magnetic fields by quantum spin liquid in the organic insulators EtMe3Sb[Pd(dmit)2]2 and κ-(BEDT-TTF)2Cu2(CN)3

Cited by in corpus (16)

• Intrinsic quantum Ising model on a triangular lattice magnet TmMgGaO${}_4$ and beyond
• Low-energy Spin Dynamics of Quantum Spin Liquid Candidate $NaYbS{e}_2$
• Spin liquid state in a rare-earth hyperkagome lattice
• Intrinsic transverse field in frustrated quantum Ising magnets: its physical origin and quantum effects
• Disorder-induced spin-liquid-like behavior in kagome-lattice compounds
• Effective point-charge analysis of crystal electric fields -- application to rare-earth pyrochlores and tripod kagome magnets R3Mg2Sb3O14
• Dynamic magnetism in the disordered hexagonal double perovskite BaTi${}_{1/2}$Mn${}_{1/2}$O${}_3$
• Ordered ground states of kagome magnets with generic exchange anisotropy
• Incommensurate magnetic order in Sm${}_3$BWO${}_9$ with the distorted kagome lattice
• Local evidence for collective spin excitations in the distorted kagome antiferromagnet Pr${}_3$BWO${}_9$
• Homogenous reduced moment in a gapful scalar chiral kagome antiferromagnet
• Magnetic properties and field-induced phenomena in the Jeff = 1/2 distorted kagome antiferromagnet
• Magnetic transition in the $J_{\text{eff}}=1/2$ Kagomé system Sm${}_3$Sb${}_3$Zn${}_2$O${}_{14}$
• Three-dimensional Sandglass Magnet with Non-Kramers ions
• Disorder-induced spin excitation continuum and spin-glass ground state in the inverse spinel CuGa${}_2$O${}_4$
• Strongly frustrated 2D magnetism in a 3D hexagonal perovskite