Dispersion of Magnetic Excitations in Superconducting Optimally Doped YBa_2Cu_3O_6.95

Abstract

Detailed neutron scattering measurements of YBa_2Cu_3O_6.95 found that the resonance peak and incommensurate magnetic scattering induced by superconductivity represent the same physical phenomenon: two dispersive branches that converge near 41 meV and the in-plane wave-vector q_af=(pi/a, pi/a) to form the resonance peak. One branch has a circular symmetry around q_af and quadratic downward dispersion from ~41 meV to the spin gap of 33+-1meV. The other, of lower intensity, disperses from ~41 meV to at least 55 meV. Our results exclude a quartet of vertical incommensurate rods in q-w space expected from spin waves produced by dynamical charge stripes as an origin of the observed incommensurate scattering in optimally-doped YBCO.

arXiv commentVersion 3: Author change. Changes made throughout the text and minor changes in figures, Model parameters slightly changed after a small error in the calculation was discovered

References in corpus (15)

• Quantum Magnetic Excitations from Stripes in Copper-Oxide Superconductors
• Neutron Scattering from Magnetic Excitations in Bi_2 Sr_2 Ca_2 O_8+delta
• Evolution of the resonance and incommensurate spin fluctuations in superconducting YBa${}_2$Cu${}_3$O${}_{6+x}$
• The Spin Excitation Spectrum in Superconducting $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_{6.85}$
• Magnetic Resonant Mode in the Single-Layer High Temperature Superconductor Tl${}_2$Ba${}_2$Cu${}_{6+\delta }$
• Spin Susceptibility in Underdoped $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_{6+\mathbf{x}}$
• The resonance peak in cuprate superconductors
• Effect of the magnetic resonance on the electronic spectra of high Tc superconductors
• The neutron resonance in the cuprates and its effect on fermionic excitations
• What the resonance peak cannot do
• Magnetic Collective Mode Dispersion in High Temperature Superconductors
• Magnetic fluctuations and resonant peak in cuprates: a microscopic theory
• Frequency Evolution of Neutron Peaks Below Tc: Commensurate and Incommensurate Structure in LaSrCuO and YBaCuO
• High-Energy Spin Dynamics in La${}_{1.69}$Sr${}_{0.31}$NiO${}_4$
• Possible isotope effect on the resonance peak formation in high-T${}_c$ cuprates

Cited by in corpus (53)

• Quantum Magnetic Excitations from Stripes in Copper-Oxide Superconductors
• Spin dynamics in the pseudogap state of a high-temperature superconductor
• In-plane anisotropy of spin excitations in the normal and superconducting states of underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Two-Dimensional Geometry of Spin Excitations in the High Temperature Superconductor YBa2Cu3O6+x
• Novel neutron resonance mode in $d_{x^2-y^2}$ superconductors
• Hidden magnetic excitation in the pseudogap phase of a model cuprate superconductor
• Disappearance of antiferromagnetic spin excitations in over-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Resonant magnetic excitations at high energy in superconducting $\mathbf{YB}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_{6.85}$
• Magnetic fluctuations from stripes in cuprates
• Testing the itinerancy of spin dynamics in superconducting Bi2212
• Unifying Magnons and Triplons in Stripe-Ordered Cuprate Superconductors
• Magnetic excitations and their anisotropy in YBCO: slave-boson mean-field analysis of bilayer t-J model
• Doping dependence of spin excitations in the stripe phase of high-Tc superconductors
• Hour-glass magnetic spectrum in an insulating, hole-doped antiferromagnet
• Magnetic Excitations and their energy change available to Superconducting Condensation in Optimally Doped YBa${}_2$Cu${}_3$O${}_{6.95}$
• Magnetic Excitations of the Diagonal Incommensurate Phase in Lightly-Doped La2-xSrxCuO4
• Dispersion of the odd magnetic resonant mode in near-optimally doped Bi2Sr2CaCu2O8+d
• Universal Behavior and the Two-component Character of Magnetically Underdoped Cuprate Superconductors
• Robust Upward Dispersion of the Neutron Spin Resonance in the Heavy Fermion Superconductor Ce${}_{1-x}$Yb${}_x$CoIn${}_5$
• Hourglass dispersion and resonance of magnetic excitations in the superconducting state of the single-layer cuprate HgBa2CuO4+δ near optimal doping
• High-energy magnetic excitations from dynamic stripes in LBCO (x=1/8)
• Two Ising-like magnetic excitations in a single-layer cuprate superconductor
• Magnetic properties of the overdoped superconductor La${}_{2-x}$Sr${}_x$CuO${}_4$ with and without Zn impurities
• The spin anisotropy of the magnetic excitations in the normal and superconducting states of optimally doped YBa2Cu3O6.9 studied by polarized neutron spectroscopy
• Effect of Zn and Ni impurities on the quasiparticle renormalization in Bi-2212
• Evidence for decay of spin-waves above the pseudogap in underdoped YBa2Cu3O6.35
• Magnetic collective mode in underdoped cuprates: a phenomenological analysis
• Strong-coupling analysis of scanning tunneling spectra in Bi${}_2$Sr${}_2$Ca${}_2$Cu${}_3$O${}_{10+\delta }$
• Nature of the spin resonance mode in CeCoIn${}_5$
• 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
• Dual Features of Magnetic Susceptibility in Superconducting Cuprates: a comparison to inelastic neutron scattering
• Double dispersion of the magnetic resonant mode in cuprates
• Stripes in cuprate superconductors: Excitations and dynamic dichotomy
• Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4
• Magnetic hour-glass dispersion and its relation to high-temperature superconductivity in iron-tuned Fe${}_{1+y}$Te${}_{0.7}$Se${}_{0.3}$
• Spin susceptibility in bilayered cuprates: resonant magnetic excitations
• Inward dispersion of the spin excitation spectrum of stripe-ordered La2NiO4+d
• Structural matters in HTSC; the origin and form of stripe organization and checker boarding
• Neutron spin resonance as a probe of Fermi surface nesting and superconducting gap symmetry in Ba${}_{0.67}$K${}_{0.33}$(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Absence of an isotope effect in the magnetic resonance in high-$T_c$ superconductors
• Large momentum-dependence of the main dispersion "kink" in the high-Tc superconductor Bi2Sr2CaCu2O8+δ
• Theory of two-particle excitations and the magnetic susceptibility in high-Tc cuprate superconductors
• Multiband responses in high-Tc cuprate superconductors
• Magnetic Excitations of Coupled Spin Ladders: a Quantum Monte Carlo Study
• Anisotropic effect of a magnetic field on the neutron spin resonance in FeSe
• The Hour-Glass Magnetic Spectrum Arising from a Striped, Cluster Spin Glass Ground State in La1.75Sr0.25CoO4
• Magnetic excitations in the stripe phase of high-T_c superconductors
• Renormalization of Commensurate Magnetic Peak in Ni-doped La${}_{1.85}$Sr${}_{0.15}$CuO${}_4$
• A Unified Theory for the Cuprates, Iron-Based and Similar Superconducting Systems: Application for Spin and Charge Excitations in the Hole-Doped Cuprates
• Spin Gap in Optimally-doped YBCO
• In-plane oxygens in high-temperature superconducting cuprates
• Universal properties of modulated antiferromagnetic systems