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The neutron resonance in the cuprates and its effect on fermionic excitations

By Ar. Abanov, A. V. Chubukov, M. Eschrig, M. R. Norman and J. Schmalian

Abstract

We argue that the exciton scenario for the magnetic resonance in the cuprate superconductors yields a small spectral weight of the resonance, in agreement with experiment. We show that the small weight is related to its concentration in a small region of momentum and energy. Despite this, we find that a large fermionic self-energy can indeed be generated by a resonance with such properties, i.e., the scattering from the resonance substantially affects the electronic properties of the cuprates below $T_c$.Comment: 4 pages, no figure

Topics: Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons
Publisher: 'American Physical Society (APS)'
Year: 2002
DOI identifier: 10.1103/PhysRevLett.89.177002
OAI identifier: oai:arXiv.org:cond-mat/0112126

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