Statistics of spinons in the spin-liquid phase of Cs2CuCl4

Abstract

Motivated by a recent experiment on Cs2CuCl4, we study the spin dynamics of the spin-liquid phase of the spin-1/2 frustrated Heisenberg antiferromagnet on the anisotropic triangular lattice. There have been two different proposals for the spin-liquid phase of Cs2CuCl4. These spin-liquid states support different statistics of spinons; the bosonic Sp(N) large-N mean field theory predicts bosonic spinons while the SU(2) slave-boson mean field theory leads to fermionic spinons. We compute the dynamical spin structure factor for both types of spin-liquid state at zero and finite temperatures. While at zero temperature both theories agree with experiment on a qualitative level, they show substantial differences in the temperature dependence of the dynamical spin structure factor.

arXiv comment4 pages, including 4 figures

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Cited by in corpus (30)

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• Ordering in spatially anisotropic triangular antiferromagnets
• Extreme sensitivity of a frustrated quantum magnet: Cs_2CuCl_4
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• Temperature Dependence of the Magnetic Susceptibility for Triangular-Lattice Antiferromagnets with spatially anisotropic exchange constants
• Criticality in quantum triangular antiferromagnets via fermionized vortices
• Algebraic vortex liquid in spin-1/2 triangular antiferromagnets: Scenario for Cs_2CuCl_4
• Ordering in Cs2CuCl4: Is there a proximate spin liquid?
• Ground states of a frustrated spin-1/2 antifferomagnet: Cs_2CuCl_4 in a magnetic field
• Theory of the algebraic vortex liquid in an anisotropic spin-1/2 triangular antiferromagnet
• Spin dynamics of the quasi two dimensional spin-1/2 quantum magnet Cs_2CuCl_4
• Excitation spectra and ground state properties of the layered spin-1/2 frustrated antiferromagnets Cs_2CuCl_4 and Cs_2CuBr_4
• Spin Structure Factor of the Frustrated Quantum Magnet Cs_2CuCl_4
• The planar pyrochlore antiferromagnet: A large-N analysis
• Competing Orders and Superconductivity in the Doped Mott Insulator on the Shastry-Sutherland Lattice
• One-dimensionalization by Geometrical Frustration in the Anisotropic Triangular Lattice of the 5d Quantum Antiferromagnet Ca3ReO5Cl2
• Quantum phases and phase transitions of Mott insulators
• Nature of the low energy excitations in the short range ordered region of Cs${}_2$CuCl${}_4$ as revealed by ${}^{133}$Cs NMR
• Critical spin liquid at 1/3 magnetization in a spin-1/2 triangular antiferromagnet
• High-Temperature Series Expansion for Spin-1/2 Heisenberg Models
• Commensurate and incommensurate ground states of Cs_2CuCl_4 in a magnetic field
• Anisotropic Triangular Lattice Realized in Rhenium Oxychlorides A3ReO5Cl2 (A = Ba and Sr)
• ${}^{133}$Cs NMR investigation of 2D frustrated Heisenberg antiferromagnet, Cs${}_2$CuCl${}_4$
• U(1) spin liquids and valence bond solids in a large-N three-dimensional Heisenberg model
• Existence of Fermion Zero Modes and Deconfinement of Spinons in Quantum Antiferromagnetism resulting from Algebraic Spin Liquid
• Strange superconductivity near an antiferromagnetic heavy fermion quantum critical point
• Modified large-$N$ approach to gapless spin liquids, magnetic orders, and dynamics: Application to triangular lattice antiferromagnets
• Evolution of the single-hole spectral function across a quantum phase transition in the anisotropic-triangular-lattice antiferromagnet