Spin Excitations in La2CuO4: Consistent Description by Inclusion of Ring-Exchange

Abstract

We consider the square lattice Heisenberg antiferromagnet with plaquette ring exchange and a finite interlayer coupling leading to a consistent description of the spin-wave excitation spectrum in La2CuO4. The values of the in-plane exchange parameters, including ring-exchange J_{\Box}, are obtained consistently by an accurate fit to the experimentally observed in-plane spin-wave dispersion, while the out-of-plane exchange interaction is found from the temperature dependence of the sublattice magnetization at low temperatures. The fitted exchange interactions J=151.9 meV and J_{\Box}=0.24 J give values for the spin stiffness and the Neel temperature in excellent agreement with the experimental data.

4 pages, 1 figure, RevTex

References in corpus (4)

• Spin waves and electronic interactions in La2CuO4
• Proposal of an extended t-J Hamiltonian for high-Tc cuprates from ab initio calculations on embedded clusters
• Nature of Spin Excitations in Two-dimensional Mott Insulators: Undoped Cuprates and Other Materials
• Derivation of effective spin models from a three band model for CuO_2-planes

Cited by in corpus (48)

• Unifying Magnons and Triplons in Stripe-Ordered Cuprate Superconductors
• A new hybrid LDA and Generalized Tight-Binding method for the electronic structure calculations of strongly correlated electron systems
• Spectral Properties of Magnetic Excitations in Cuprate Two-Leg Ladder Systems
• High-dimensional fractionalization and spinon deconfinement in pyrochlore antiferromagnets
• Cyclic Spin Exchange in Cuprate Spin Ladders
• Perturbation theories for the S=1/2 spin ladder with four-spin ring exchange
• Systematic Mapping of the Hubbard Model to the Generalized t-J Model
• Neel order, ring exchange and charge fluctuations in the half-filled Hubbard model
• Mode-Coupling Model of Mott Gap Collapse in the Cuprates: Natural Phase Boundary for Quantum Critical Points
• Magnetic order in quasi-two-dimensional molecular magnets investigated with muon-spin relaxation
• Phase Diagram of the Heisenberg Spin Ladder with Ring Exchange
• Validity and limitations of the superexchange model for the magnetic properties of Sr2IrO4 and Ba2IrO4 mediated by the strong spin-orbit coupling
• Theoretical analysis of magnetic Raman scattering in La2CuO4: two-magnon intensity with the inclusion of ring exchange
• Quartett formation at (100)/(110)-interfaces of d-wave superconductors
• Thermodynamic properties of an $S=1/2$ ring-exchange model on the triangular lattice
• Effects of ring exchange interaction on the Neel phase of two-dimensional, spatially anisotropic, frustrated Heisenberg quantum antiferromagnet
• Quantum spin fluctuations and evolution of electronic structure in cuprates
• Parameters of the Effective Singlet-Triplet Model for Band Structure of High-$T_c$ Cuprates by Different Approaches
• Magnetic Excitation Spectrum of the Square Lattice S=1/2 Heisenberg Antiferromagnet K2V3O8
• Exact diagonalization study of the Hubbard-parametrized four-spin ring exchange model on a square lattice
• Ring Exchange and Phase Separation in the Two-dimensional Boson Hubbard model
• Metastable states in the J1-J2 Ising model
• Spin-1/2 Ising-Heisenberg model with the pair XYZ Heisenberg interaction and quartic Ising interactions as the exactly soluble zero-field eight-vertex model
• Derivation of the t-J model for finite doping
• Spin-wave thermodynamics of square-lattice antiferromagnets revisited
• Phase separation in the bosonic Hubbard model with ring exchange
• Magnetic Phase Diagram of Spin-1/2 Two-Leg Ladder with Four-Spin Ring Exchange
• High-energy magnon dispersion in the half-filled Hubbard model: A comparison with La${}_2$CuO${}_4$
• Hybridization and spin-orbit coupling effects in quasi-one-dimensional spin-1/2 magnet Ba3Cu3Sc4O12
• Commensurate and incommensurate magnetic order in the doped two-dimensional Hubbard model: dynamical mean-field theory analysis
• Circulating-current states and ring-exchange interactions in cuprates
• Dynamics in two-leg spin ladder with a four-spin cyclic interaction
• Two-qubit gates for decoherence-free qubits using a ring exchange interaction
• Effect of local charge fluctuations on spin physics in the Neel state of La${}_2$CuO${}_4$
• Dynamical structure factor of a fermionic supersolid on an optical lattice
• Magnon and Hole Excitations in the Two-Dimensional Half-filled Hubbard Model
• Thermodynamic Properties of Spin Ladders with Cyclic Exchange
• Magnon Spectra of Cuprates beyond Spin Wave Theory
• Magnetic susceptibility of the body-centred orthorhombic La${}_2$CuO${}_4$ system
• Quantum corrections to the spin-wave spectrum of La${}_2$CuO${}_4$ in an external magnetic field
• Simulation of the Ring-exchange Models with Projected Entangled Pair States
• Higher order spin interactions mediated by the substrate
• Effects of frustration and cyclic exchange on the spin-1/2 Heisenberg antiferromagnet within the self-consistent spin-wave theory
• Spin-Wave Theory for the Scalar Chiral Phase in the Multiple-Spin Exchange Model on a Triangular Lattice
• Fluctuation Effect in the π-flux State for Undoped High-Temperature Superconductors
• Magnetic ordering in doped coupled frustrated quantum spin-1/2 chains with 4-spin exchange
• Multimagnon and multispinon $L_3$-edge RIXS spectra of an effective ${\tilde{J}}_1-{\tilde{J}}_2-{\tilde{J}}_3$ square lattice Heisenberg model
• Elementary excitations in undoped layered cuprates