Glide symmetry breaking and Ising criticality in the quasi-1D magnet CoNb${}_2$O${}_6$

Abstract

We construct a microscopic spin-exchange Hamiltonian for the quasi-1D Ising magnet CoNb${}_2$O${}_6$ that captures detailed and hitherto-unexplained aspects of its dynamic spin structure factor. We perform a symmetry analysis that recalls that an individual Ising chain in this material is buckled, with two sites in each unit cell related by a glide symmetry. Combining this with numerical simulations benchmarked against neutron scattering experiments, we argue that the single-chain Hamiltonian contains a staggered spin-exchange term. We further argue that the transverse-field-tuned quantum critical point in CoNb${}_2$O${}_6$ corresponds to breaking this glide symmetry, rather than an on-site Ising symmetry as previously believed. This gives a unified microscopic explanation of the dispersion of confined states in the ordered phase and `quasiparticle breakdown' in the polarized phase at high transverse field.

7 pages, 4 figures in the main text; 8 pages, 8 figures in supplementary information; published version

References in corpus (6)

• The ITensor Software Library for Tensor Network Calculations
• Spontaneous Magnon Decays
• Mott insulators in strong electric fields
• Spectral Function for the S=1 Heisenberg Antiferromagetic Chain
• Spinon Confinement in the One-Dimensional Ising-Like Antiferromagnet SrCo2V2O8
• "Quasi-particle breakdown" in the quasi-one-dimensional Ising ferromagnet CoNb${}_2$O${}_6$

Cited by in corpus (32)

• Magnetic Couplings in Edge-Sharing High-Spin $d^7$ Compounds
• Duality and domain wall dynamics in a twisted Kitaev chain
• Microscopic characterization of Ising conformal field theory in Rydberg chains
• Asymptotically exact theory for nonlinear spectroscopy of random quantum magnets
• Extracting spinon self-energies from two-dimensional coherent spectroscopy
• Easy-plane anisotropic-exchange magnets on a honeycomb lattice: quantum effects and dealing with them
• Nonlinear spectroscopy of bound states in perturbed Ising spin chains
• Tuning the confinement potential between spinons in the Ising chain CoNb2O6 using longitudinal fields and quantitative determination of the microscopic Hamiltonian
• Shedding Light on Microscopic Details: 2D Spectroscopy of 1D Quantum Ising Magnets
• Single-ion properties of the transverse-field Ising model material CoNb${}_2$O${}_6$
• Spin dynamics of the generalized quantum spin compass chain
• Magnon interactions in the quantum paramagnetic phase of CoNb${}_2$O${}_6$
• Comparative Raman Scattering Study of Crystal Field Excitations in Co-based Quantum Magnets
• Magnetic excitations in the one-dimensional Heisenberg-Ising model with external fields and their experimental realizations
• Multimagnon dynamics and thermalization in the $S=1$ easy-axis ferromagnetic chain
• Excitations of quantum Ising chain CoNb2O6 in low transverse field: quantitative description of bound states stabilized by off-diagonal exchange and applied field
• Exploring Two-dimensional Coherent Spectroscopy with Exact Diagonalization: Spinons and Confinement in 1D Quantum Magnets
• Spin dynamics of the $E_8$ particles
• Quantum Supercritical Regime with Universal Magnetocaloric Scaling in Ising Magnets
• Efficient and practical Hamiltonian simulation from time-dependent product formulas
• Transforming from Kitaev to Disguised Ising Chain: Application to CoNb${}_2$O${}_6$
• BaCo${}_2$(AsO${}_4$)${}_2$: Strong Kitaev, After All
• Spinon confinement in the gapped antiferromagnetic XXZ spin-1/2 chain
• Low Temperature Domain Wall Freezing and Non-Equilibrium Dynamics in the Transverse-Field Ising Model Material CoNb${}_2$O${}_6$
• Cobalt-Based Pyroxenes: A New Playground for Kitaev Physics and Ising Model Realization
• Detecting Confined and Deconfined Spinons in Dynamical Quantum Simulations
• A possible spin Jahn-Teller material: ordered pseudobrookite FeTi2O5
• Signatures of Domain-Wall Confinement in Raman Spectroscopy of Ising Spin Chains
• Semiclassical approach to spin dynamics of a ferromagnetic S=1 chain
• Emergent $D_8^{(1)}$ spectrum and topological soliton excitation in CoNb${}_2$O${}_6$
• Ising spin ladders of orthopyroxene CoGeO${}_3$
• Long-time divergences in the nonlinear response of gapped one-dimensional many-particle systems