Vaporization of Kitaev spin liquids

Abstract

Quantum spin liquid is an exotic quantum state of matter in magnets. This state is a spin analogue of the liquid helium which does not solidify down to the lowest temperature due to strong quantum fluctuations. In conventional fluids, liquid and gas possess the same symmetry and adiabatically connect to each other by bypassing the critical end point. We find that the situation is qualitatively different in quantum spin liquids realizing in a three-dimensional Kitaev model; both gapless and gapped quantum spin liquid phases at low temperatures are always distinguished from the high-temperature paramagnet (spin gas) by a phase transition. The results challenge common belief that the absence of thermodynamic singularity down to the lowest temperature is a symptom of a quantum spin liquid.

11 pages, 9 figures, accepted for publication in Phys. Rev. Lett

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• Theory of Magnetic Phase Diagrams in Hyperhoneycomb and Harmonic-honeycomb Iridates
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• Simple ${\mathbb{Z}}_2$ lattice gauge theories at finite fermion density
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• Competing magnetic orders and spin liquids in two- and three-dimensional kagome systems: A pseudo-fermion functional renormalization group perspective
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• Functional renormalization group study of the Kitaev-$\Gamma$ model on the honeycomb lattice and emergent incommensurate magnetic correlations
• Universal Thermodynamics in the Kitaev Fractional Liquid
• Spin dynamics in the Kitaev model with disorder: Quantum Monte Carlo study of dynamical spin structure factor, magnetic susceptibility, and NMR relaxation rate
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• Kitaev magnetism through the prism of lithium iridate
• Dynamics of a two-dimensional quantum spin-orbital liquid: spectroscopic signatures of fermionic magnons
• High temperature thermodynamics of the honeycomb-lattice Kitaev-Heisenberg model: A high temperature series expansion study
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• Generic Field-Driven Phenomena in Kitaev Spin Liquids: Canted Magnetism and Proximate Spin Liquid Physics
• Quantum liquids of the S=3/2 Kitaev honeycomb and related Kugel-Khomskii models
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• Geometric description of the Kitaev honeycomb lattice model
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• Field stability of Majorana spin liquids in antiferromagnetic Kitaev models
• Convolutional restricted Boltzmann machine aided Monte Carlo: An application to Ising and Kitaev models
• Nonlinear response of the Kitaev honeycomb lattice model in a weak magnetic field
• Epitaxial stabilization of (111)-oriented frustrated quantum pyrochlore thin films
• Quadrupole partial orders and triple-$q$ states on the face-centered cubic lattice
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• Quantum paramagnetism in the hyperhoneycomb Kitaev magnet $\beta$-ZnIrO${}_3$
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• Scattering phenomena for spin transport in Kitaev spin liquid
• Thermally enhanced Majorana-mediated spin transport in the Kitaev model
• Projective symmetry of partons in Kitaev's honeycomb model
• Quantum phase transition between spin liquid and spin nematics in spin-1 Kitaev honeycomb model
• Ground-State Phase Diagram of the Kitaev-Heisenberg Model on a Three-dimensional Hyperhoneycomb Lattice
• Topological magnons in Kitaev magnets with finite Dzyaloshinskii-Moriya interaction at high field
• Real-time evolution of static electron-phonon models in time-dependent electric fields
• Field-driven spatiotemporal manipulation of Majorana zero modes in a Kitaev spin liquid
• The SpinParser software for pseudofermion functional renormalization group calculations on quantum magnets
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• Majorana Fermion Mean-Field Theories of Kitaev Quantum Spin Liquids
• Dynamic Jahn-Teller Phenomena in Heavy Transition Metal Compounds
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• Electronic origin of ferroic quadrupole moment under antiferroic quadrupole orders and finite magnetic moment in $J_{\mathrm{eff}}=3/2$ systems
• Projective-symmetry-group analysis of inelastic light scattering in Kitaev spin balls
• Systematic construction of topological-nontopological hybrid universal quantum gates based on many-body Majorana fermion interactions
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