Breakdown of magnetic order in the pressurized Kitaev iridate $\beta$-Li${}_2$IrO${}_3$

Abstract

Temperature-pressure phase diagram of the Kitaev hyperhoneycomb iridate $\beta$-Li${}_2$IrO${}_3$ is explored using magnetization, thermal expansion, magnetostriction, and muon spin rotation ($\mu$SR) measurements, as well as single-crystal x-ray diffraction under pressure and ab initio calculations. The Neel temperature of $\beta$-Li${}_2$IrO${}_3$ increases with the slope of 0.9 K/GPa upon initial compression, but the reduction in the polarization field $H_c$ reflects a growing instability of the incommensurate order. At 1.4 GPa, the ordered state breaks down upon a first-order transition giving way to a new ground state marked by the coexistence of dynamically correlated and frozen spins. This partial freezing in the absence of any conspicuous structural defects may indicate classical nature of the resulting pressure-induced spin liquid, an observation paralleled to the increase in the nearest-neighbor off-diagonal exchange $\Gamma$ under pressure.

arXiv comment4 pages + Supplemental Material (published version)

References in corpus (45)

• Restoring the density-gradient expansion for exchange in solids and surfaces
• Generalized gradient approximation for solids and their surfaces
• Anyons in an exactly solved model and beyond
• Quantum Spin Liquids
• Models and Materials for Generalized Kitaev Magnetism
• Challenges in Design of Kitaev Materials: Magnetic Interactions from Competing Energy Scales
• Physics of the Kitaev model: fractionalization, dynamical correlations, and material connections
• Hyper-honeycomb iridate $\beta$-Li2IrO3 as a platform for Kitaev magnetism
• Dynamics of a two-dimensional quantum spin liquid: signatures of emergent Majorana fermions and fluxes
• Fermionic response from fractionalization in an insulating two-dimensional magnet
• Spin-orbit excitation energies, anisotropic exchange, and magnetic phases of honeycomb RuCl3
• A new spin-anisotropic harmonic honeycomb iridate
• Vaporization of Kitaev spin liquids
• Tight-binding models for the new iron based superconductor materials
• Exactly solvable Kitaev model in three dimensions
• Non-coplanar and counter-rotating incommensurate magnetic order stabilized by Kitaev interactions in $\gamma$-Li2IrO3
• Unconventional magnetic order on the hyperhoneycomb Kitaev lattice in $\beta$-Li2IrO3: full solution via magnetic resonant x-ray diffraction
• Phase separation and suppression of critical dynamics at quantum transitions of itinerant magnets: MnSi and (Sr${}_{1-x}$Ca${}_x$)RuO${}_3$
• Three dimensional quantum spin liquids in models of harmonic-honeycomb iridates and phase diagram in an infinite-D approximation
• High pressure research using muons at the Paul Scherrer Institute
• Kitaev Materials
• Theory of Magnetic Phase Diagrams in Hyperhoneycomb and Harmonic-honeycomb Iridates
• Classical spin liquid instability driven by off-diagonal exchange in strong spin-orbit magnets
• Strongly frustrated triangular spin lattice emerging from triplet dimer formation in honeycomb Li2IrO3
• Competition between spin-orbit coupling, magnetism, and dimerization in the honeycomb iridates: $\alpha$-Li${}_2$IrO${}_3$ under pressure
• Unified theory of spiral magnetism in the harmonic-honeycomb iridates α, β, γ Li2IrO3
• Single crystal growth from separated educts and its application to lithium transition-metal oxides
• Theory of Raman response in three-dimensional Kitaev spin liquids: application to $\beta -$ and $\gamma -$Li${}_2$IrO${}_3$ compounds
• Neutron scattering and muon spin relaxation measurements of the non-centrosymmetric antiferromagnet CeCoGe3
• Field-induced intertwined orders in 3D Mott-Kitaev honeycomb $\beta$-Li2IrO3
• Pressure-tuning of bond-directional exchange interactions and magnetic frustration in hyperhoneycomb iridate $\beta$-$\mathrm{L}{\mathrm{i}}_2\mathrm{Ir}{\mathrm{O}}_3$
• Low temperature thermodynamic properties near the field-induced quantum critical point in DTN
• Miniature ceramic-anvil high-pressure cell for magnetic measurements in a commercial superconducting quantum interference device magnetometer
• Spin dynamics in the S =1/2 kagome compound vesignieite, Cu3Ba(VO5H)2
• Magnetic structure and excitation spectrum of the hyperhoneycomb Kitaev magnet $\beta$-Li${}_2$IrO${}_3$
• The vicinity of hyper-honeycomb $\beta$-Li2IrO3 to a three-dimensional Kitaev spin liquid state
• Finite-Temperature Phase Transition to a Quantum Spin Liquid in a Three-Dimensional Kitaev Model on a Hyperhoneycomb Lattice
• Two iridates, two models, two approaches: a comparative study on magnetism in 3D honeycomb materials
• Revealing frustrated local moment model for pressurized hyperhoneycomb iridate: paving a way toward quantum spin liquid
• Magnetic field-induced evolution of intertwined orders in the Kitaev magnet $\beta$-Li${}_2$IrO${}_3$
• Magnetic ground state and spin fluctuations in MnGe chiral magnet as studied by Muon Spin Rotation
• High-resolution thermal expansion measurements under Helium-gas pressure
• Neutron scattering signatures of the 3D hyper-honeycomb Kitaev quantum spin-liquid
• Improved sensitivity of magnetic measurements under high pressure in miniature ceramic anvil cell for a commercial SQUID magnetometer
• Critical Scaling of the Magnetization and Magnetostriction in the Weak Itinerant Ferromagnet UIr

Cited by in corpus (50)

• Honeycomb Layered Oxides: Structure, Energy Storage, Transport, Topology and Relevant Insights
• Geometrical frustration versus Kitaev interactions in BaCo${}_2$(AsO${}_4$)${}_2$
• The range of non-Kitaev terms and fractional particles in RuCl${}_3$
• Pressure-tuned magnetic interactions in honeycomb Kitaev materials
• Experimental signatures of quantum and topological states in frustrated magnetism
• Strong effect of hydrogen order on magnetic Kitaev interactions in H${}_3$LiIr${}_2$O${}_6$
• Competition between static and dynamic magnetism in the Kitaev spin liquid material Cu2IrO3
• Raman evidence for dimerization and Mott collapse in $\alpha$-RuCl${}_3$ under pressures
• Pressure-induced collapse of spin-orbital Mott state in the hyperhoneycomb iridate $\beta$-Li${}_2$IrO${}_3$
• Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet $\alpha$-Li${}_2$IrO${}_3$
• Distinguishing dipolar and octupolar quantum spin ices using contrasting magnetostriction signatures
• Perspective on the muon-spin rotation/relaxation under hydrostatic pressure
• Possible quantum paramagnetism in compressed Sr${}_2$IrO${}_4$
• Kitaev magnetism through the prism of lithium iridate
• Chemical- and hydrostatic-pressure effects on the Kitaev honeycomb material Na${}_2$IrO${}_3$
• Plaquette order in classical spin liquid stabilized by strong off-diagonal exchange
• Pressure-induced structural dimerization in the hyperhoneycomb iridate $\beta$-Li${}_2$IrO${}_3$ at low temperatures
• Theory of magnetostriction for multipolar quantum spin ice in pyrochlore materials
• Spin-gap and two-dimensional magnetic excitations in Sr2IrO4
• Anisotropic temperature-field phase diagram of single-crystalline $\beta$-Li${}_2$IrO${}_3$: magnetization, specific heat, and ${}^7$Li NMR study
• Counter-rotating spiral order in three dimensional iridates: signature of hidden symmetry in Kitaev-$\Gamma$ model
• Strong effects of uniaxial pressure and short-range correlations in Cr2Ge2Te6
• Anisotropy as a diagnostic test for distinct tensor network wavefunctions of integer and half-integer spin Kitaev quantum spin liquids
• Uniaxial pressure effects in the two-dimensional van-der-Waals ferromagnet CrI${}_3$
• Optical signature of the pressure-induced dimerization in the honeycomb iridate $\alpha$-Li${}_2$IrO${}_3$
• Quantum phase transitions in the spin-1 Kitaev-Heisenberg chain
• Collective spin dynamics of Z2 vortex crystals in triangular Kitaev-Heisenberg antiferromagnets
• Field evolution of the spin-liquid candidate YbMgGaO${}_4$
• Resonant inelastic x-ray scattering spectra in the hyperhoneycomb iridate $\beta$-Li${}_2$IrO${}_3$: First principles calculations
• Field evolution of low-energy excitations in the hyperhoneycomb magnet $\beta$-Li${}_2$IrO${}_3$
• Magnetic Excitations and Interactions in the Kitaev Hyperhoneycomb Iridate $\beta$-Li${}_2$IrO${}_3$
• Interplay of magnetism and dimerization in pressurized Kitaev material $\beta$-Li${}_2$IrO${}_3$
• Large off diagonal exchange couplings and spin liquid states in ${\mathbf{C}}_3$ symmetric iridates
• Hidden spin-orbital order in the Kitaev hyperhoneycomb $\beta$-Li${}_2$IrO${}_3$
• Symmetry-protected topological magnons in three dimensional Kitaev materials
• Lattice dynamics and structural transition of the hyperhoneycomb iridate $\beta$-Li${}_2$IrO${}_3$ investigated by high-pressure Raman scattering
• Ground-State Phase Diagram of the Kitaev-Heisenberg Model on a Three-dimensional Hyperhoneycomb Lattice
• Hydrostatic pressure effect on Co-based honeycomb magnet BaCo2(AsO4)2
• Evidence for pressure induced polarization rotation, octahedral tilting and reentrant ferroelectric phase in tetragonal (Pb0.5Bi0.5)(Ti0.5Fe0.5)O3
• Unraveling the magnetic ground-state in alkali-metal lanthanide oxide Na${}_2$PrO${}_3$
• Pressure tuning of competing interactions on a honeycomb lattice
• Design of opposed-anvil-type high-pressure cell for precision magnetometry and its application to quantum magnetism
• The nature of low-temperature spin-freezing in frustrated Kitaev magnets
• Spin and charge order in doped spin-orbit coupled Mott insulators
• Competing Interactions and the Effects of Uniaxial Out-of-plane Perturbations in the Honeycomb Antiferromagnet Na${}_2$Co${}_2$TeO${}_6$
• Tuning Magnetic and Electronic Properties of Double Perovskite La${}_2$CoIr${}_{1-x}$Ti${}_x$O${}_6$
• Fluctuating magnetism in Zn-doped averievite with well-separated kagome layers
• Pressure-dependent magnetism of the Kitaev candidate Li${}_2$RhO${}_3$
• Collapse of susceptibility and non-trivial spin dynamics in the hyper-honeycomb magnet $\beta$-Li${}_2$IrO${}_3$ under high pressure
• Disorder, Low-Energy Excitations, and Topology in the Kitaev Spin Liquid