Phys. Rev. Lett. 83, 1652–1655 (1999)A Relation between the Resonance Neutron Peak and ARPES Data in CupratesSee Also: Erratum Received 2 March 1999; published in the issue dated 23 August 1999 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. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.1652
DOI:
10.1103/PhysRevLett.83.1652
PACS:
74.20.Mn, 75.30.Ds
See AlsoErratum: Ar. Abanov and Andrey V. Chubukov, Erratum: A Relation between the Resonance Neutron Peak and ARPES Data in Cuprates [Phys. Rev. Lett. 83, 1652 (1999)], Phys. Rev. Lett. 84, 398 (2000). |
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