Finite-wavevector phonon coupling to degenerate electronic states in LaSrCuO

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dc.creatorKabanov, V. V.
dc.creatorMihailovic, D.
dc.date2000-07-17
dc.date.accessioned2026-07-07T02:38:14Z
dc.date.available2026-07-07T02:38:14Z
dc.descriptionWe consider finite-k electron-phonon coupling appropriate for a superconductor with a very short coherence length and local intersite pairs. From group theoretical analyis we find that phonons with nonzero k can couple to degenerate electronic states in LaSrCuO and a Jahn-Teller-like distortion is found to be operative for E_u and E_g -symmetry O states. Experimentally observed anomalies in inelastic neutron scattering, ESR and EXAFS are found to be consistent with such an interaction of the tau_1 symmetry Sigma point mode with the planar O p_x and p_y states. The proposed interaction is found to naturally facilitate symmetry breaking associated with pairing and/or stripe formation.
dc.description8 pages postscript figures are included
dc.identifierhttps://arxiv.org/abs/cond-mat/0007284
dc.identifierhttp://arxiv.org/abs/cond-mat/0007284
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16596
dc.subjectSuperconductivity
dc.titleFinite-wavevector phonon coupling to degenerate electronic states in LaSrCuO
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