Double dispersion of the magnetic resonant mode in cuprates

Abstract

The magnetic excitation spectra in the vicinity of the resonant peak, as observed by inelastic neutron scattering in cuprates, are studied within the memory-function approach. It is shown that at intermediate doping the superconducting gap induces a double dispersion of the peak, with an anisotropy rotated between the downward and upward branch. Similar behavior, but with a spin-wave dispersion at higher energies, is obtained for the low-doping case assuming a large pairing pseudogap.

arXiv comment4 LaTeX pages, 4 figures

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Cited by in corpus (15)

• Magnetic excitations and their anisotropy in YBCO: slave-boson mean-field analysis of bilayer t-J model
• Doping Dependence of Bilayer Resonant Spin Excitations in $(\mathbf{Y},\mathbf{Ca})\mathbf{B}{\mathbf{a}}_2\mathbf{C}{\mathbf{u}}_3{\mathbf{O}}_{6+\mathbf{x}}$
• Dispersion of the odd magnetic resonant mode in near-optimally doped Bi2Sr2CaCu2O8+d
• Dynamic spin susceptibility in the t-J model
• Dynamic spin susceptibility of superconducting cuprates: A microscopic theory of the magnetic resonance mode
• Spin fluctuations and high-temperature superconductivity in cuprates
• Magnetic collective mode in underdoped cuprates: a phenomenological analysis
• Dual Features of Magnetic Susceptibility in Superconducting Cuprates: a comparison to inelastic neutron scattering
• Magnetic excitations in La-based cuprate superconductors: slave-boson mean-field analysis of the two-dimensional t-J model
• Moment Expansion to the Memory Function for Generalized Drude Scattering rate
• Memory Function Approach to Correlated Electron Transport: A Comprehensive Review
• Magnetic incommensurability in $p$-type cuprate perovskites
• Electronic spectrum and superconductivity in the extended t-J-V model
• Doping dependance of the spin resonance peak in bilayer high-$T_c$ superconductors
• Two component spin-fermion model for high-$T_c$ cuprates: Applications to neutron scattering and ARPES experiments