Finite field regime for a quantum spin liquid in $\alpha$-RuCl${}_3$

Abstract

An external magnetic field can induce a transition in $\alpha$-RuCl${}_3$ from an ordered zigzag state to a disordered state that is possibly related to the Kitaev quantum spin liquid. Here we present new field dependent inelastic neutron scattering and magnetocaloric effect measurements implying the existence of an additional transition out of the quantum spin liquid phase at an upper field limit $B_u$. The neutron scattering shows three distinct regimes of magnetic response. In the low field ordered state the response shows magnon peaks; the intermediate field regime shows only continuum scattering, and above $B_u$ the response shows sharp magnon peaks at the lower bound of a strong continuum. Measurable dispersion of magnon modes along the $(0,0,L)$ direction implies non-negligible inter-plane interactions. Combining the magnetocaloric effect measurements with other data a $T-B$ phase diagram is constructed. The results constrain the range where one might expect to observe quantum spin liquid behavior in $\alpha$-RuCl${}_3$.

References in corpus (40)

• Non-Abelian Anyons and Topological Quantum Computation
• Anyons in an exactly solved model and beyond
• Mott Insulators in the Strong Spin-Orbit Coupling Limit: From Heisenberg to a Quantum Compass and Kitaev Models
• Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid
• Proximate Kitaev Quantum Spin Liquid Behaviour in α-RuCl${}_3$
• $\alpha$-RuCl3: a Spin-Orbit Assisted Mott Insulator on a Honeycomb Lattice
• Relevance of the Heisenberg-Kitaev model for the honeycomb lattice iridates A_2IrO_3
• Neutron tomography of magnetic Majorana fermions in a proximate quantum spin liquid
• Spin waves and revised crystal structure of honeycomb iridate Na2IrO3
• The monoclinic crystal structure of $\alpha$-RuCl${}_3$ and the zigzag antiferromagnetic ground state
• Scattering Continuum and Possible Fractionalized Excitations in $\alpha$-RuCl${}_3$
• Magnetic order in $\alpha$-RuCl${}_3$: a honeycomb lattice quantum magnet with strong spin-orbit coupling
• Low-temperature crystal and magnetic structure of $\alpha$-RuCl3
• Evidence for a Field-induced Quantum Spin Liquid in $\alpha$-RuCl${}_3$
• Dynamics of a two-dimensional quantum spin liquid: signatures of emergent Majorana fermions and fluxes
• Excitations in the field-induced quantum spin liquid state of alpha-RuCl3
• Successive magnetic phase transitions in $\mathbf{\alpha }$-RuCl${}_3$: XY-like frustrated magnet on the honeycomb lattice
• Spin-orbit excitation energies, anisotropic exchange, and magnetic phases of honeycomb RuCl3
• Phase Diagram of $\alpha$-RuCl${}_3$ in an in-plane Magnetic Field
• Gapless Spin Excitations in the Field-Induced Quantum Spin Liquid Phase of alpha-RuCl3
• Spin-wave excitations evidencing the Kitaev interaction in single crystalline $\alpha$-RuCl${}_3$
• Direct Measurement of the Spin Hamiltonian and Observation of Condensation of Magnons in the 2D Frustrated Quantum Magnet Cs2CuCl4
• Large field-induced gap of Kitaev-Heisenberg paramagnons in $\alpha$-RuCl${}_3$
• Field-induced quantum criticality in the Kitaev system $\alpha$-RuCl${}_3$
• Magnetic Excitations and Continuum of a Field-Induced Quantum Spin Liquid in $\alpha$-RuCl${}_3$
• Topological Magnons in Kitaev Magnets at High Fields
• Probing $\alpha$-RuCl${}_3$ Beyond Magnetic Order: Effects of Temperature and Magnetic Field
• Cascade of magnetic-field-induced quantum phase transitions in a spin $1/2$ triangular-lattice antiferromagnet
• Quantization of the thermal Hall conductivity at small Hall angles
• Theory of the field-revealed Kitaev spin liquid
• Approximately quantized thermal Hall effect of chiral liquids coupled to phonons
• Antiferromagnetic resonance and terahertz continuum in $\alpha -$RuCl${}_3$
• Unconventional spin dynamics in the honeycomb-lattice material $\alpha$-RuCl${}_3$: high-field ESR studies
• Spin Wave Analysis of Low-Temperature Thermal Hall Effect in the Candidate Kitaev Spin Liquid $\alpha$-RuCl${}_3$
• Field evolution of magnons in $\alpha$-RuCl${}_3$ by high-resolution polarized terahertz spectroscopy
• Impact of off-diagonal exchange interactions on the Kitaev spin liquid state of $\alpha$-RuCl${}_3$
• Field-induced intertwined orders in 3D Mott-Kitaev honeycomb $\beta$-Li2IrO3
• Signatures of low-energy fractionalized excitations in $\alpha$-RuCl${}_3$ from field-dependent microwave absorption
• Field induced magnon excitation and in gap absorption of Kitaev candidate RuCl3
• Field-induced intermediate phase in $\alpha$-RuCl${}_3$: Non-coplanar order, phase diagram, and proximate spin liquid

Cited by in corpus (89)

• Half-integer quantized anomalous thermal Hall effect in the Kitaev material $\alpha$-RuCl${}_3$
• Hunting Majorana Fermions in Kitaev Magnets
• Robustness of the thermal Hall effect close to half-quantization in a field-induced spin liquid state
• Field-induced quantum spin disordered state in spin-1/2 honeycomb magnet Na2Co2TeO6
• The planar thermal Hall conductivity in the Kitaev magnet α-RuCl3
• Rethinking $\alpha$-RuCl${}_3$
• Evidence of a Phonon Hall Effect in the Kitaev Spin Liquid Candidate $\alpha$-RuCl${}_3$
• Magnetic field induced quantum phases in a tensor network study of Kitaev magnets
• Proximate ferromagnetic state in the Kitaev model material $\alpha$-RuCl${}_3$
• Dynamical and thermal magnetic properties of the Kitaev spin liquid candidate $\alpha$-RuCl${}_3$
• Field-induced intermediate ordered phase and anisotropic interlayer interactions in $\alpha$-RuCl${}_3$
• High-Field Quantum Disordered State in $\alpha$-RuCl3: Spin Flips, Bound States, and a Multi-Particle Continuum
• Topological magnons for thermal Hall transport in frustrated magnets with bond-dependent interactions
• Identification of Magnetic Interactions and High-field Quantum Spin Liquid in $\alpha$-RuCl${}_3$
• Magnetic ground state of the Kitaev Na${}_2$Co${}_2$TeO${}_6$ spin liquid candidate
• Thermal Hall effects in quantum magnets
• Thermodynamic perspective on the field-induced behavior of $\alpha$-RuCl${}_3$
• Magnetic anisotropy reversal driven by structural symmetry-breaking in monolayer α-RuCl3
• Heisenberg-Kitaev model in a magnetic field: $1/S$ expansion
• Nature of Magnetic Excitations in the High-Field Phase of $\alpha$-RuCl${}_3$
• Magnetic Field Induced Competing Phases in Spin-Orbital Entangled Kitaev Magnets
• Electrical probes of the non-Abelian spin liquid in Kitaev materials
• Electrical Access to Ising Anyons in Kitaev Spin Liquids
• Tensor network wavefunction of $S=1$ Kitaev spin liquids
• Magnetoelastic coupling and effects of uniaxial strain in $\alpha$-RuCl${}_3$ from first principles
• Emergence of a nematic paramagnet via quantum order-by-disorder and pseudo-Goldstone modes in Kitaev magnets
• Giant Phonon Anomalies in the Proximate Kitaev Quantum Spin Liquid $\alpha$-RuCl${}_3$
• Field-induced phase transitions of the Kitaev material $\alpha$-RuCl${}_3$ probed by thermal expansion and magnetostriction
• Two-step gap opening across the quantum critical point in a Kitaev honeycomb magnet
• Angle-dependent thermodynamics of $\alpha$-RuCl${}_3$
• Magnon dispersion and dynamic spin response in three-dimensional spin models for $\alpha$-RuCl${}_3$
• Tunneling spectroscopy as a probe of fractionalization in 2D magnetic heterostructures
• Kitaev Quantum Spin Liquids
• Exact resummation of the Holstein-Primakoff expansion and differential equation approach to operator square-roots
• Revealing the Phase Diagram of Kitaev Materials by Machine Learning: Cooperation and Competition between Spin Liquids
• Extraction of the interaction parameters for $\alpha -$RuCl${}_3$ from neutron data using machine learning
• High-field thermal transport properties of the Kitaev quantum magnet alpha-RuCl3: evidence for low-energy excitations beyond the critical field
• Continuous spin excitations in the three-dimensional frustrated magnet K2Ni2(SO4)3
• Planar thermal Hall effect from phonons in a Kitaev candidate material
• Investigation of the magnetoelastic coupling anisotropy in the Kitaev material $\alpha$-RuCl${}_3$
• Possible Intermediate Quantum Spin Liquid Phase in $\alpha$-RuCl${}_3$ under High Magnetic Fields up to 100 T
• Easy-plane anisotropic-exchange magnets on a honeycomb lattice: quantum effects and dealing with them
• Evidence for the first-order topological phase transition in a Kitaev spin liquid candidate $\alpha$-RuCl${}_3$
• Stacking faults in $\alpha$-RuCl${}_3$ revealed by local electric polarization
• Phonon Hall viscosity from phonon-spinon interactions
• Unquantized thermal Hall effect in quantum spin liquids with spinon Fermi surfaces
• Self-selecting vapor growth of transition metal halide single crystals
• Thermal anyon interferometry in phonon-coupled Kitaev spin liquids
• Anisotropy as a diagnostic test for distinct tensor network wavefunctions of integer and half-integer spin Kitaev quantum spin liquids
• Evidence for magnetic fractional excitations in a Kitaev quantum-spin-liquid candidate $\alpha$-RuCl${}_3$
• Emergent orbital magnetization in Kitaev quantum magnets
• The Saga of $\alpha$-RuCl${}_3$: Parameters, Models, and Phase Diagrams
• Magnetic vortex liquid and anomalous thermal Hall conductivity in frustrated magnets with bond-dependent interactions
• Spin liquid in twisted homobilayers group-VI gichalcogenides
• Oscillations of the thermal conductivity observed in the spin-liquid state of $\alpha$-RuCl${}_3$
• Acoustic phonon dispersion of $\alpha$-RuCl${}_3$
• Proximate Kitaev system for an intermediate magnetic phase in in-plane magnetic fields
• Driving spin chirality by electron dynamics in laser-excited antiferromagnets
• Indirect Exchange Interaction Leads to Large Lattice Contribution to Magnetocaloric Entropy Change
• Spin excitation continuum to topological magnon crossover and thermal Hall conductivity in Kitaev magnets
• Neutron spectroscopy evidence for a possible magnetic-field-induced gapless quantum-spin-liquid phase in a Kitaev material $\alpha$-RuCl${}_3$
• Signatures for spinons in the quantum spin liquid candidate Ca${}_{10}$Cr${}_7$O${}_{28}$
• Symmetry-protected topological magnons in three dimensional Kitaev materials
• Thermodynamic evidence for field-angle dependent Majorana gap in a Kitaev spin liquid
• Magnetothermal transport in ultraclean single crystals of Kitaev magnet $\alpha$-RuCl${}_3$
• Phonon Dynamics in the Chiral Kitaev Spin Liquid
• Static and fluctuating zigzag order, and possible signatures of Kitaev physics, in torque measurements of $\alpha$-RuCl${}_3$
• Gauge Field Dynamics in Multilayer Kitaev Spin Liquids
• Resonant Inelastic X-ray Scattering from Electronic Excitations in $\alpha$-RuCl${}_3$ Nanolayers
• Dilution of the magnetic lattice in the Kitaev candidate $\alpha$-RuCl${}_3$ by Rh${}^{3+}$ doping
• Ultrafast spin dynamics in the proximate quantum spin liquid α-RuCl3
• Chiral excitations and the intermediate-field spin-liquid regime in the Kitaev magnet $\alpha$-RuCl${}_3$
• Anyon polarons as a window into competing phases of the Kitaev honeycomb model under a Zeeman field
• Intermediate phases in $\alpha$-RuCl${}_3$ under in-plane magnetic field via interlayer spin interactions
• Low-energy spin dynamics in a Kitaev material Na3Ni2BiO6 investigated by NMR
• Direct evidence for anisotropic magnetic interaction in $\alpha$-RuCl${}_3$ from polarized inelastic neutron scattering
• Real-time control of non-Abelian anyons in Kitaev spin liquid under energy dissipation
• Pulsed Neutron Spectroscopy of Low Dimensional Magnets: Past, Present, and Future
• Field tuning Kitaev systems for spin fractionalization and topological order
• Robustness of Vacancy-Bound Non-Abelian Anyons in the Kitaev Model in a Magnetic Field
• Bond disorder in extended Heisenberg-Kitaev models: Spin textures and in-gap states in the high-field regime
• Scaling behavior and giant field-enhancement of the thermal conductivity in the honeycomb antiferromagnet BaCo2(AsO4)2
• Field-induced phase transitions in the Kitaev-Heisenberg model: A sign-problem-free quantum Monte Carlo study and possible application to $\alpha$-RuCl3
• Magnetostriction in the $J$-$K$-$\Gamma$ model: Application of the numerical linked cluster expansion
• Magnetic excitations in the Kitaev material Na${}_2$IrO${}_3$ studied by neutron scattering
• The field-angle anisotropy of proximate Kitaev systems under an in-plane magnetic field
• Nesting instability of gapless U(1) spin liquids with spinon Fermi pockets in two dimensions
• Stability of ordered and disordered phases in the Heisenberg-Kitaev model in a magnetic field
• Disorder, Low-Energy Excitations, and Topology in the Kitaev Spin Liquid