How to detect weak emergent broken-symmetries of the Kagome antiferromagnet from Raman spectroscopy

Abstract

We show that the magnetic Raman response of a spin-liquid is independent of the polarizations of the light for triangular symmetries. In contrast, a ground-state that has a broken symmetry shows characteristic oscillations when the polarizations are rotated. This would allow to detect weak broken symmetries and emergent order-parameters. We focus on the Kagome antiferromagnet where no conventional long-range order has been found so far, and present the Raman cross-section of a spin-liquid and a valence bond crystal (VBC) using a random phase approximation.

arXiv comment4 pages, 2 figures, v2. intro partially rewritten

References in corpus (15)

• Spin Liquid State in an Organic Mott Insulator with Triangular Lattice
• Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
• Inelastic Light Scattering From Correlated Electrons
• Projected wavefunction study of Spin-1/2 Heisenberg model on the Kagome lattice
• Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
• First excitations of the spin 1/2 Heisenberg antiferromagnet on the kagomé lattice
• Order versus Disorder in the Quantum Heisenberg Antiferromagnet on the Kagom{é} lattice: an approach through exact spectra analysis
• Ground State of the Kagome Lattice Heisenberg Antiferromagnet
• Physics of low energy singlet states of the Kagome lattice quantum Heisenberg antiferromagnet
• Magnetic Susceptibility of the Kagome Antiferromagnet ZnCu3(OH)6Cl2
• Kagome lattice antiferromagnets and Dzyaloshinsky-Moriya interactions
• Hidden long range order in Heisenberg Kagome antiferromagnets
• Detecting spontaneous symmetry breaking in finite-size spectra of frustrated quantum antiferromagnets
• Green's function approach to the magnetic properties of the kagome antiferromagnet
• Raman scattering for triangular lattices spin-1/2 Heisenberg antiferromagnets

Cited by in corpus (25)

• A Field Guide to Spin Liquids
• Raman Scattering Signatures of Kitaev Spin Liquids in A${}_2$ IrO${}_3$ Iridates
• Interplay of thermal and quantum spin fluctuations on the kagome lattice
• Valence Bond Glass Phase in the Diluted Kagome Antiferromagnets
• Raman signature of the U(1) Dirac spin-liquid state in spin-1/2 kagome system
• Theory of Raman response in three-dimensional Kitaev spin liquids: application to $\beta -$ and $\gamma -$Li${}_2$IrO${}_3$ compounds
• Dynamic fingerprint of fractionalized excitations in single-crystalline Cu${}_3$Zn(OH)${}_6$FBr
• Theory of inelastic light scattering in spin-1 systems: resonant regimes and detection of quadrupolar order
• Theory of two magnon Raman scattering in antiferromagnetic iron pnictides
• Raman Signatures of Strong Kitaev Exchange Correlations in (Na${}_{1-x}$Li${}_x$)${}_2$IrO${}_3$ : Experiments and Theory
• Flat-band spin dynamics and phonon anomalies of the saw-tooth spin-chain system Fe${}_2$O(SeO${}_3$)${}_2$
• Signatures of fractional statistics in nonlinear pump-probe spectroscopy
• Raman scattering in a Heisenberg S=1/2 antiferromagnet on the anisotropic triangular lattice
• Fractional Spin fluctuations and quantum liquid signature in Gd2ZnIrO6
• Spin liquid like Raman signatures in hyperkagome iridate Na${}_4$Ir${}_3$O${}_8$
• Tuning the spin dynamics of kagome systems
• Raman Scattering Polarization and Single Spinon Identification in Two-Dimensional Kitaev Quantum Spin Liquids
• Anomalous thermal relaxation and pump-probe spectroscopy of 2D topologically ordered systems
• Optical observation of quasiperiodic Heisenberg antiferromagnets in two dimensions
• Projective-symmetry-group analysis of inelastic light scattering in Kitaev spin balls
• Thermodynamic Properties of Kagome Antiferromagnets with different Perturbations
• Probing emergent QED in quantum spin ice via Raman scattering of phonons: shallow inelastic scattering and pair production
• Polarized Raman Response of Two-Dimensional Quasiperiodic Antiferromagnets: Configuration-Interaction versus Green's Function Approaches
• Non-Loudon-Fleury Raman scattering in spin-orbit coupled Mott insulators
• Dynamical Response of the Kitaev Spin Liquid under Third-Nearest-Neighbor Heisenberg Interaction