Magnetic excitations in a bond-centered stripe phase: Spin waves far from the semi-classical limit

Abstract

Using a spin-only model, we compute spin excitation spectra in a bond-centered stripe state with long-range magnetic order. We employ a bond operator formalism, which naturally captures both dimerization and broken spin symmetry in a unified framework. At low energies, the spin excitations resemble spin waves, but at higher energies they are very similar to spin-1 excitations of isolated spin ladders. Our theory does well describe neutron scattering data [J. M. Tranquada et al., Nature 429, 534 (2004)] on LaBaCuO, pointing towards bond order in this material.

4 pages, 3 figs, of possible relevance to experiments reported in cond-mat/0401621; (v2) final version as published

Cited by in corpus (27)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• Linear Response Theory and the Universal Nature of the Magnetic Excitation Spectrum of the Cuprates
• Superconducting d-wave stripes in cuprates: Valence bond order coexisting with nodal quasiparticles
• Nature of the Magnetic Order in the Charge-Ordered Cuprate La${}_{1.48}$Nd${}_{0.4}$Sr${}_{0.12}$CuO${}_4$
• Disorder-induced freezing of dynamical spin fluctuations in underdoped cuprates
• Competing orders II: the doped quantum dimer model
• Ferro-Orbitally Ordered Stripes in Systems with Alternating Orbital Order
• High-energy magnetic excitations from dynamic stripes in LBCO (x=1/8)
• Dynamic spin susceptibility of superconducting cuprates: A microscopic theory of the magnetic resonance mode
• Relation between the one-particle spectral function and dynamic spin susceptibility in superconducting Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8-\delta }$
• Magnetic excitations in La-based cuprate superconductors: slave-boson mean-field analysis of the two-dimensional t-J model
• Magnetic fluctuations in n-type high-$T_c$ superconductors reveal breakdown of fermiology
• Stripes in cuprate superconductors: Excitations and dynamic dichotomy
• Stripes and electronic quasiparticles in the pseudogap state of cuprate superconductors
• Magnetic Excitations of Stripes and Checkerboards in the Cuprates
• Dynamic spin-response function of the high-temperature Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ superconductor form angle resolved photoemission spectra
• Inward dispersion of the spin excitation spectrum of stripe-ordered La2NiO4+d
• Spin susceptibility in bilayered cuprates: resonant magnetic excitations
• Tendencies toward nematic order in YBa2Cu3O6+x: Uniform distortion vs. incipient charge stripes
• Modelling Magnetic Fluctuations in the Stripe Ordered State
• Phenomenological lattice model for dynamic spin and charge fluctuations in the cuprates
• Incompatibility of modulated checkerboard patterns with the neutron scattering resonance peak in cuprate superconductors
• Evidence for site-centered stripes from magnetic excitations in CuO superconductors
• Magnetic field-induced soft mode in spin-gapped high-Tc superconductors
• Phenomenological theory of spin excitations in La- and Y-based cuprates
• Thermal melting of density waves on the square lattice
• Magnetic Excitations in the Site-Centered Stripe Phase: Spin Wave Theory of Coupled Three-Leg Ladders