Neutron Resonance in the Cuprates and its Effect on Fermionic Excitations

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

Phys. Rev. Lett. 89, 177002 – Published 4 October 2002

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 $T_{c}$ .

Received 11 December 2001

DOI:https://doi.org/10.1103/PhysRevLett.89.177002

Authors & Affiliations

Ar. Abanov¹, A. V. Chubukov², M. Eschrig³, M. R. Norman⁴, and J. Schmalian⁵

¹Theory Division, Los Alamos National Laboratory, MS B262, Los Alamos, New Mexico 87545
²Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
³Institut für Theoretische Festkörperphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany
⁴Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
⁵Department of Physics, Iowa State University, Ames, Iowa 50011

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Vol. 89, Iss. 17 — 21 October 2002

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