Magnetic Field Induced Competing Phases in Spin-Orbital Entangled Kitaev Magnets

Abstract

There has been a great interest in magnetic field induced quantum spin liquids in Kitaev magnets after the discovery of neutron scattering continuum and half quantized thermal Hall conductivity in the material $\alpha$-RuCl${}_3$. In this work, we provide a semiclassical analysis of the relevant theoretical models on large system sizes, and compare the results to previous studies on quantum models with small system sizes. We find a series of competing magnetic orders with fairly large unit cells at intermediate magnetic fields, which are most likely missed by previous approaches. We show that quantum fluctuations are typically strong in these large unit cell orders, while their magnetic excitations may resemble a scattering continuum and give rise to a large thermal Hall conductivity. Our work provides an important basis for a thorough investigation of emergent spin liquids and competing phases in Kitaev magnets.

arXiv comment9+6 pages, 6+14 figures, results on magnon thermal Hall conductivity added

References in corpus (41)

• 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
• Quantum Spin Liquid States
• Correlated quantum phenomena in the strong spin-orbit regime
• Kitaev-Heisenberg Model on Honeycomb Lattice: Possible Exotic Phases in Iridium Oxides $A_2$IrO${}_3$
• Majorana quantization and half-integer thermal quantum Hall effect in a Kitaev spin liquid
• Proximate Kitaev Quantum Spin Liquid Behaviour in α-RuCl${}_3$
• Kitaev quantum spin liquid - concept and materialization
• $\alpha$-RuCl3: a Spin-Orbit Assisted Mott Insulator on a Honeycomb Lattice
• Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
• Neutron tomography of magnetic Majorana fermions in a proximate quantum spin liquid
• Generic spin model for the honeycomb iridates beyond the Kitaev limit
• Theory of Thermal Hall Effect in Quantum Magnets
• Challenges in Design of Kitaev Materials: Magnetic Interactions from Competing Energy Scales
• The monoclinic crystal structure of $\alpha$-RuCl${}_3$ and the zigzag antiferromagnetic ground state
• Magnetic order in $\alpha$-RuCl${}_3$: a honeycomb lattice quantum magnet with strong spin-orbit coupling
• Direct evidence of a zigzag spin chain structure in the honeycomb lattice: A neutron and x-ray diffraction investigation on single crystal $\mathrm{N}{\mathrm{a}}_2\mathrm{Ir}{\mathrm{O}}_3$
• Hyper-honeycomb iridate $\beta$-Li2IrO3 as a platform for Kitaev magnetism
• Excitations in the field-induced quantum spin liquid state of alpha-RuCl3
• Long range magnetic ordering in Na${}_2$IrO${}_3$
• Crystal structure and magnetism in $\alpha$-RuCl3: an ab-initio study
• Kitaev interactions between j=1/2 moments in honeycomb Na2IrO3 are large and ferromagnetic: insights from ab initio quantum chemistry calculations
• Unusual thermal Hall effect in a Kitaev spin liquid candidate $\alpha$-RuCl${}_3$
• Hidden symmetries of the extended Kitaev-Heisenberg model: Implications for honeycomb lattice iridates A2IrO3
• Magnetization processes of zigzag states on the honeycomb lattice: Identifying spin models for $\alpha$-RuCl${}_3$ and Na${}_2$IrO${}_3$
• Probing $\alpha$-RuCl${}_3$ Beyond Magnetic Order: Effects of Temperature and Magnetic Field
• Honeycomb-lattice Heisenberg-Kitaev model in a magnetic field: Spin canting, metamagnetism, and vortex crystals
• Spin-S Kitaev model: Classical Ground States, Order by Disorder and Exact Correlation Functions
• Theoretical investigation of the magnetic dynamics in $\alpha$-RuCl${}_3$
• Theory of the field-revealed Kitaev spin liquid
• Quantum spin liquid signatures in Kitaev-like frustrated magnets
• Finite field regime for a quantum spin liquid in $\alpha$-RuCl${}_3$
• One Proximate Kitaev Spin Liquid in the $K$-$J$-$\Gamma$ Model on the Honeycomb Lattice
• 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
• Path to stable quantum spin liquids in spin-orbit coupled correlated materials
• Kitaev-like honeycomb magnets: Global phase behavior and emergent effective models
• Field-induced quantum spin liquid in the Kitaev-Heisenberg model and its relation to $\alpha$-RuCl${}_3$
• Kitaev honeycomb models in magnetic fields: Dynamical response and hidden symmetries
• Field-induced intermediate phase in $\alpha$-RuCl${}_3$: Non-coplanar order, phase diagram, and proximate spin liquid
• Trigonal distortion in the honeycomb iridates: Proximity of zigzag and spiral phases in Na2IrO3

Cited by in corpus (46)

• Magnetic field induced quantum phases in a tensor network study of Kitaev magnets
• Sign structure of thermal Hall conductivity for in-plane-field polarized Kitaev magnets
• Geometrical frustration versus Kitaev interactions in BaCo${}_2$(AsO${}_4$)${}_2$
• Topological magnons for thermal Hall transport in frustrated magnets with bond-dependent interactions
• Beyond Kitaev physics in strong spin-orbit coupled magnets
• Magnetic anisotropy reversal driven by structural symmetry-breaking in monolayer α-RuCl3
• Heisenberg-Kitaev model in a magnetic field: $1/S$ expansion
• The Heart of Entanglement: Chiral, Nematic, and Incommensurate Phases in the Kitaev-Gamma Ladder in a Field
• Emergence of a nematic paramagnet via quantum order-by-disorder and pseudo-Goldstone modes in Kitaev magnets
• Spin excitations of a proximate Kitaev quantum spin liquid realized in Cu${}_2$IrO${}_3$
• Identification of a Kitaev Quantum Spin Liquid by Magnetic Field Angle Dependence
• Functional renormalization group study of the Kitaev-$\Gamma$ model on the honeycomb lattice and emergent incommensurate magnetic correlations
• Kitaev Quantum Spin Liquids
• Revealing the Phase Diagram of Kitaev Materials by Machine Learning: Cooperation and Competition between Spin Liquids
• Susceptibility anisotropy and its disorder evolution in models for Kitaev materials
• Triple-meron crystal in high-spin Kitaev magnets
• Field-angle dependence of thermal Hall conductivity in magnetically ordered Kitaev-Heisenberg system
• Multinode quantum spin liquids on the honeycomb lattice
• Phonon thermal transport shaped by strong spin-phonon scattering in a Kitaev material Na${}_2$Co${}_2$TeO${}_6$
• Thermal spin dynamics of Kitaev magnets $-$ scattering continua and magnetic field induced phases within a stochastic semiclassical approach
• Machine-Learned Phase Diagrams of Generalized Kitaev Honeycomb Magnets
• Generic Field-Driven Phenomena in Kitaev Spin Liquids: Canted Magnetism and Proximate Spin Liquid Physics
• Flavor-wave theory with quasiparticle damping at finite temperatures: Application to chiral edge modes in the Kitaev model
• Extent of frustration in the classical Kitaev-$\Gamma$ model via bond anisotropy
• Thermal Hall effect incorporating magnon damping in localized spin systems
• Magnetic vortex liquid and anomalous thermal Hall conductivity in frustrated magnets with bond-dependent interactions
• 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${}_3$
• Spontaneous Chiral-Spin Ordering in Spin-Orbit Coupled Honeycomb Magnets
• Intrinsic Nernst effect of the magnon orbital moment in a honeycomb ferromagnet
• Topological phase diagrams of in-plane field polarized Kitaev magnets
• Suppression of the antiferromagnetic order by Zn doping in a possible Kitaev material Na${}_2$Co${}_2$TeO${}_6$
• Interplay of magnetic field and trigonal distortion in the honeycomb $\Gamma$ model: Occurrence of a spin-flop phase
• Electric field control of a quantum spin liquid in weak Mott insulators
• Topological phase transitions and thermal Hall effect in a noncollinear spin texture
• Disentangling spin excitation continua in classical and quantum magnets using 2D nonlinear spectroscopy
• Quantum-classical crossover in the spin-1/2 Heisenberg-Kitaev kagome magnet
• Successive topological phase transitions in two distinct spin-flop phases on the honeycomb lattice
• Signatures of a gapless quantum spin liquid in the Kitaev material Na${}_3$Co${}_{2-x}$Zn${}_x$SbO${}_6$
• Emergent Hyper-Magic Manifold in Twisted Kitaev Bilayers
• Complex orders and chirality in the classical Kitaev-$\Gamma$ model
• Molecular dipoles in designer honeycomb lattices
• Field-Induced Ordered Phases in Anisotropic Spin-1/2 Kitaev Chains
• Ground-state phase diagram of anisotropically interacting Heisenberg-$\Gamma$ models on a honeycomb lattice
• Classification of magnon thermal Hall systems based on U(1) to non-Abelian gauge fields
• Dominant Kitaev Interaction and Field-induced Quantum Disordered Phase in the Cobaltate Na${}_2$Co${}_2$TeO${}_6$