Scale-free antiferromagnetic fluctuations in the S=1/2 kagome antiferromagnet herbertsmithite

Abstract

Neutron spectroscopy and diffuse neutron scattering on herbertsmithite [ZnCu3 (OH)6Cl2], a near-ideal realisation of the s = 1/2 kagome antiferromagnet, reveal the hallmark property of a quantum spin liquid; instantaneous short-ranged antiferromagnetic correlations in the absence of a time-averaged ordered moment. These dynamic antiferromagnetic correlations are only very weakly dependent of neutron-energy transfer and temperature, and persist up to 25 meV and 120 K. At low energy transfers a shift of the magnetic scattering to low Q is observed with increasing temperature, providing evidence of gapless spinons. It is argued that these observations provide important evidence in favour of RVB theories of (doped) Mott insulators.

Paper as published in Physics Review Letters. One figure with new data has been added and text has changed to improve clarity and to include discussion of the new data. 4 pages, 3 figures

References in corpus (12)

• 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
• Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
• Properties of an algebraic spin liquid on the kagome lattice
• Spin chirality on a two-dimensional frustrated lattice
• Algebraic spin liquid as the mother of many competing orders
• 17O NMR study of the intrinsic magnetic susceptibility and spin dynamics of the quantum kagome antiferromagnet ZnCu3(OH)6Cl2
• Quantum phase transition induced by Dzyaloshinskii-Moriya in the kagome antiferromagnet
• From high temperature supercondutivity to quantum spin liquid: progress in strong correlation physics
• The magnetic groundstate of an experimental $S=1/2$ kagomé antiferromagnet
• ^{63}Cu, ^{35}Cl, and ^{1}H NMR in the S=1/2 Kagomé Lattice ZnCu_{3}(OH)_{6}Cl_{2}
• Low temperature magnetization of the S=1/2 kagome antiferromagnet ZnCu_3(OH)_6Cl_2

Cited by in corpus (89)

• Quantum Spin Liquids
• Quantum Spin Liquid States
• Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
• Herbertsmithite and the Search for the Quantum Spin Liquid
• Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
• Evidence for a Gapped Spin-Liquid Ground State in a Kagome Heisenberg Antiferromagnet
• Competing Spin Liquid States in the Spin-$1/2$ Heisenberg Model On Triangular Lattice
• The Chemistry of Quantum Spin Liquids
• Global Phase Diagram of Competing Ordered and Quantum Spin Liquid Phases on the Kagomé Lattice
• Gapped spin-1/2 spinon excitations in a new kagome quantum spin liquid compound Cu${}_3$Zn(OH)${}_6$FBr
• Gapped spin liquid with ${\mathbb{Z}}_2$-topological order for kagome Heisenberg model
• Gapless spin liquid ground state in the S=1/2 vanadium oxyfluoride kagome antiferromagnet [NH4]2[C7H14N][V7O6F18]
• Dynamic Scaling in the Susceptibility of the Spin-1\2 Kagome Lattice Antiferromagnet Herbertsmithite
• Topological excitations and the dynamic structure factor of spin liquids on the kagome lattice
• Magnetism of the N=42 kagome lattice antiferromagnet
• Candidate Quantum Spin Liquid in the Ce\textsuperscript{3+} Pyrochlore Stannate Ce${}_2$Sn${}_2$O${}_7$
• Interplay of thermal and quantum spin fluctuations on the kagome lattice
• Kondo Metal and Ferrimagnetic Insulator on the Triangular Kagomé Lattice
• First-principles determination of Heisenberg Hamiltonian parameters for the spin-1/2 kagome antiferromagnet ZnCu3(OH)6Cl2
• Projective symmetry group classification of chiral spin liquids
• A Schwinger-boson approach to the kagome with Dzyaloshinskii-Moriya interactions: phase diagram and dynamical structure factors
• Valence Bond Glass Phase in the Diluted Kagome Antiferromagnets
• Emergent Order in the Kagome Ising Magnet Dy3Mg2Sb3O14
• Synthesis and Characterization of Single Crystal Samples of Spin-$1/2$ Kagome Lattice Antiferromagnets in the Zn-Paratacamite Family Zn${}_x$Cu${}_{4-x}$(OH)${}_6$Cl${}_2$
• Molecular Quantum Magnetism in LiZn2Mo3O8
• Crystallographic, Electronic, Thermal and Magnetic Properties of Single-Crystal SrCo2As2
• Diagnosing phases of magnetic insulators via noise magnetometry with spin qubits
• Spin Liquid Ground State in the Frustrated Kagome Antiferromagnet MgCu3(OH)6Cl2
• Field-Induced Freezing of a Quantum Spin Liquid on the Kagome Lattice
• Dzyaloshinsky-Moriya interaction in vesignieite: A route to freezing in a quantum kagome antiferromagnet
• Variational Monte Carlo study of chiral spin liquid in quantum antiferromagnet on the triangular lattice
• From Spin Glass to Quantum Spin Liquid Ground States in Molybdate Pyrochlores
• Random-Singlet Phase in Disordered Two-Dimensional Quantum Magnets
• Chiral spin liquid on kagome antiferromagnet induced by Dzyaloshinskii-Moriya interaction
• Symmetry Reduction in the Quantum Kagome Antiferromagnet Herbertsmithite
• Re-entrance of Gapless Quantum Spin Liquids Observed in a Newly Synthesized Spin-1/2 Kagome Antiferromagnet $ZnC{u}_3(OH{)}_{6}S{O}_4$
• Frustration and Dzyaloshinsky-Moriya anisotropy in the kagome francisites Cu${}_3$Bi(SeO${}_3{)}_2$O${}_2$X
• Experimental signatures of quantum and topological states in frustrated magnetism
• Functional-renormalization-group analysis of Dzyaloshinsky-Moriya and Heisenberg spin interactions on the kagome lattice
• Quantum spin liquids in the absence of spin-rotation symmetry: application to Herbertsmithite
• Spin dynamics in the S =1/2 kagome compound vesignieite, Cu3Ba(VO5H)2
• Quantum phase diagram of the spin-$1$ $J_1-J_2$ Heisenberg model on the honeycomb lattice
• Nature of finite-temperature transition in anisotropic pyrochlore Er2Ti2O7
• Chiral and Critical Spin Liquids in Spin-$1/2$ Kagome Antiferromagnet
• Signatures of a spin-1/2 cooperative paramagnet in the diluted triangular lattice of Y${}_2$CuTiO${}_6$
• Spangolite: an s=1/2 maple leaf lattice antiferromagnet?
• $ab$-$initio$ Approaches for Low-Energy Spin Hamiltonians
• Heterogeneous freezing in a geometrically frustrated spin model without disorder: spontaneous generation of two time-scales
• Instabilities of Spin-Liquid States in a Quantum Kagome Antiferromagnet
• Emergent Potts order in the kagomé $J_1-J_3$ Heisenberg model
• Resonating valence bond physics is not always governed by the shortest tunneling loops
• Pair Correlations, Short Range Order and Dispersive Excitations in the Quasi-Kagome Quantum Magnet Volborthite
• Emergent quasi-one-dimensionality in a kagomé magnet: A simple route to complexity
• Spin structure factors of chiral quantum spin liquids on the kagome lattice
• Single to multi quasiparticle excitations in the itinerant helical magnet CeRhIn${}_5$
• $\mu$SR Insight into the Impurity Problem in Quantum Kagome Antiferromagnets
• Low-temperature spin dynamics of a valence bond glass in Ba2YMoO6
• Emergent spin-1 trimerized valence bond crystal in the spin-1/2 Heisenberg model on the star lattice
• Spin dynamics, short range order and spin freezing in Y0.5Ca0.5BaCo4O7
• Nature of optical excitations in the frustrated kagome compound Herbertsmithite
• Featureless quantum spin liquid, 1/3-magnetization plateau state and exotic thermodynamic properties of spin-1/2 frustrated Heisenberg antiferromagnet on an infinite Husimi lattice
• Lattice dynamics in the spin-1/2 frustrated kagome compound herbertsmithite
• The route to magnetic order in the spin-$1/2$ kagome Heisenberg antiferromagnet: The role of interlayer coupling
• Structure Factors of the Kagome-Lattice Heisenberg antiferromagnets at finite temperatures
• Recent progress on magnetic-field studies on quantum-spin-liquid candidates
• Signatures of fractionalization in spin liquids from interlayer thermal transport
• Thermodynamics of the kagome-lattice Heisenberg antiferromagnet with arbitrary spin $S$
• Sc_{2}Ga_{2}CuO_{7}: A possible Quantum spin liquid near the percolation threshold
• Structure factor of low-energy spin excitations in a S=1/2 kagome antiferromagnet
• Anharmonic magnon excitations in noncollinear and charge-ordered RbFe${}^{2+}$Fe${}^{3+}$F${}_6$
• Magnetic phase diagram of Cu${}_{4-x}$Zn${}_x$(OH)${}_6$FBr studied by neutron-diffraction and $\mu$SR techniques
• Perfect kagome-lattice antiferromagnets with J${}_{eff}$ = 1/2: The Co${}^{2+}$-analogs of copper minerals volborthite and vesignieite
• Probing quantum spin liquids in equilibrium using the inverse spin Hall effect
• Infrared phonons as a probe of a spin-liquid states in herbertsmithite ZnCu3(OH)6Cl2
• Spin liquid in twisted homobilayers group-VI gichalcogenides
• Helical order and multiferroicity in the $S=1/2$ quasi-kagome system KCu${}_3$As${}_2$O${}_7$(OD)${}_3$
• A hybrid vanadium fluoride with structurally isolated S = 1 kagome layers
• Nuclear relaxation rates in the Herbertsmithite Kagome antiferromagnets ZnCu3(OH)6Cl2
• Magnetic field-induced instability of the cooperative paramagnetic state in Zn${}_x$Co${}_{4-x}$(OD)${}_6$Cl${}_2$
• Magnetically ordered and kagome quantum spin liquid states in the Zn-doped claringbullite series
• Rapid filling of the spin gap with temperature in the Schwinger-boson mean-field theory of the antiferromagnetic Heisenberg kagome model
• Variational Monte Carlo study of gapless spin liquid in the spin-$1/2$ XXZ antiferromagnetic model on the kagome lattice
• Combinatorial exploration of quantum spin liquid candidates in the herbertsmithite material family
• Using Random Boundary Conditions to simulate disordered quantum spin models in 2D-systems
• Frustrated quantum spin systems in small triangular lattices studied with a numerical method
• Quantifying the Phase Diagram and Hamiltonian of $S=1/2$ Kagome Antiferromagnets: Bridging Theory and Experiment
• One-third magnetization plateau in a spin-1 kagome magnet BaNi${}_3$(AsO${}_4$)${}_2$(OH)${}_2$
• Electron correlation effects and spin-liquid state in the Herbertsmithite Kagome lattice
• Effect of Dirac Spinons on ARPES signatures of Herbertsmithe