Spin waves and electronic interactions in La2CuO4

Abstract

The magnetic excitations of the square-lattice spin-1/2 antiferromagnet and high-Tc parent La2CuO4 are determined using high-resolution inelastic neutron scattering. Sharp spin waves with absolute intensities in agreement with theory including quantum corrections are found throughout the Brillouin zone. The observed dispersion relation shows evidence for substantial interactions beyond the nearest-neighbor Heisenberg term, which can be understood in terms of a cyclic or ring exchange due to the strong hybridization path around the Cu4O4 square plaquettes.

5 pages revtex, 3 ps figures (fig(1) color), updated figures 2&3 and added analysis details to include referees' comments

References in corpus (1)

• Quantum renormalization of high energy excitations in the 2D Heisenberg antiferromagnet

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• Pairing susceptibility in the weakly interacting multilayer Hubbard model evaluated by direct perturbative expansion
• $K$ -edge and $L_3$ -edge RIXS study of columnar and staggered quantum dimer phases of the square lattice Heisenberg model
• Two component spin-fermion model for high-$T_c$ cuprates: Applications to neutron scattering and ARPES experiments
• Temperature dependence of the $(\pi ,0)$ anomaly in the excitation spectrum of the 2D quantum Heisenberg antiferromagnet
• Anisotropic Hubbard model on a triangular lattice -- spin dynamics in Ho Mn O_3
• Renormalization of Commensurate Magnetic Peak in Ni-doped La${}_{1.85}$Sr${}_{0.15}$CuO${}_4$
• Calculated Spin Fluctuational Pairing Interaction in HgBa2CuO4 using LDA+FLEX Method
• Phase diagram of the SU($N$) antiferromagnet of spin $S$ on a square lattice
• Paramagnetic spin excitations in insulating Rb${}_{0.8}$Fe${}_{1.6}$Se${}_2$
• Non-Convergent Perturbation Theory and Misleading Inferences about Parameter Relationships: the Case of Superexchange
• Impact of gapped spin-orbit excitons on low energy pseudospin exchange interactions
• Quantum corrections to the spin-wave spectrum of La${}_2$CuO${}_4$ in an external magnetic field
• Pulsed Neutron Spectroscopy of Low Dimensional Magnets: Past, Present, and Future
• Effects of frustration and cyclic exchange on the spin-1/2 Heisenberg antiferromagnet within the self-consistent spin-wave theory
• Superconductivity in the two-dimensional Hubbard model?
• Effect of strain-induced orbital splitting on the magnetic excitations in undoped cuprates
• The rich phase diagram of the prototypical iridate Ba${}_2$IrO${}_4$: Effective low-energy models and metal-insulator transition
• Phase separation and pairing fluctuations in oxide materials
• Higher order spin interactions mediated by the substrate
• Magnetic excitations in infinite-layer nickelates
• The enhanced s*-wave component of the superconducting gap in the overdoped HTSC cuprates with orthorhombic distortion
• Spin dynamics in the square-lattice cupola system Ba(TiO)Cu${}_4$(PO${}_4$)${}_4$
• Time-dependent Schwinger boson mean-field theory of supermagnonic propagation in 2D antiferromagnets
• Spin-spectral-weight distribution and energy range of the parent compound La${}_2$CuO${}_4$
• Extraordinary magnetic response of an anisotropic 2D antiferromagnet via site-dilution
• Magnetic Flux Tuning of Spin Chirality in Mott Insulators with Ring Exchanges
• Paramagnonlike excitations and spin diffusion in magnetic resonance studies of copper oxide superconductors
• Coexistence of insulator-like paramagnon and metallic spin-orbit exciton modes in SrIrO${}_3$
• Confined and deconfined spinon excitations in the rectangular-lattice quantum antiferromagnet
• Spin-stripes in the Hubbard model: a combined DMFT and Bethe-Salpeter analysis
• Pseudogap and strange metal states in the square-lattice Hubbard model: A comprehensive study
• Bimagnon dispersion of La2CuO4 probed by resonant inelastic X-ray scattering
• Composite antiferromagnetic and orbital order with altermagnetic properties at a cuprate/manganite interface
• Systematic determination of coupling constants in spin clusters from broken-symmetry mean-field solutions
• Spin fluctuations in the 112-type iron-based superconductor Ca${}_{0.82}$La${}_{0.18}$Fe${}_{0.96}$Ni${}_{0.04}$As${}_2$
• Spatial structure of magnetic polarons in strongly interacting antiferromagnets
• Empirical case for two pseudogaps in cuprate superconductors
• Broad line-width of antiferromagnetic spinwave due to electrons correlation
• Momentum and doping dependence of spin excitations in electron-doped cuprate superconductors
• Elementary excitations in undoped layered cuprates
• Scaling of Memories and Crossover in Glassy Magnets
• Fluctuation Effect in the π-flux State for Undoped High-Temperature Superconductors
• Magnetic Excitations of a Half-Filled Tl-based Cuprate
• A systematic approach to determine the spectral characteristics of molecular magnets
• Dispersing bimagnons and doping induced bimagnon-charge modes in superconducting cuprates
• Effects of a strict site-occupation constraint in the description of quantum spin systems at finite temperature
• Multimagnon and multispinon $L_3$-edge RIXS spectra of an effective ${\tilde{J}}_1-{\tilde{J}}_2-{\tilde{J}}_3$ square lattice Heisenberg model
• Ground-State-Based Model Reduction with Unitary Circuits
• Unified description of charge and spin excitations of stripes in cuprates
• Fermi surface and pseudogap in highly doped Sr${}_2$IrO${}_4$
• Phase diagram of a spin-1/2 Heisenberg ladder with a chirality-chirality interaction
• Ground state properties of two spin models with exactly known ground states on the square lattice
• The Inward Dispersion of the Neutron Scattering Experiments in HTSC Cuprates
• Dynamics of magnetic collective modes in the square and triangular lattice Mott insulators at finite temperature
• Quantum phase transition in the Plaquette lattice with anisotropic spin exchange