A relation between the resonance neutron peak and arpes data in cuprates

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Abstract

We argue that the resonant peak observed in neutron scattering experiments on superconducting cuprates and the peak/dip/hump features observed in ARPES measurements are by-products of the same physical phenomenon. Both are due to feedback effects on the damping of spin fluctuations in a d -wave superconductor. We solve a set of coupled integral equations for fermionic and bosonic propagators, and show that the dynamical spin susceptibility below Tc possesses the resonance peak at Ωres∝ ξ-1. The scattering of these magnetic excitations by electrons gives rise to a peak/dip/hump behavior of the electronic spectral function, the peak-dip separation is exactly Ωres.

Original languageEnglish (US)
Pages (from-to)1652-1655
Number of pages4
JournalPhysical review letters
Volume83
Issue number8
DOIs
StatePublished - Aug 23 1999

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