Effect of Superconductivity on the Incommensurate Magnetic Response of Cuprate Superconductors

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dc.creatorMorr, Dirk K.
dc.creatorPines, David
dc.date1998-07-14
dc.date.accessioned2026-07-07T03:11:05Z
dc.date.available2026-07-07T03:11:05Z
dc.descriptionWe explain the effects of superconductivity on the incommensurate magnetic response $χ''(q,ω)$ observed in inelastic neutron scattering measurements on La$_{2-x}$Sr$_x$CuO$_4$. We show that a spin-fermion model correctly describes the frequency and momentum dependent changes of $χ''$ in the superconducting phase. We find these changes are generic features of an incommensurate spin structure and the d-wave symmetry of the superconducting gap and are thus expected for all cuprates with an incommensurate magnetic response. Our analysis of INS experiments in La$_{2-x}$Sr$_x$CuO$_4$ up to optimal doping suggests a Fermi surface which is closed around $(π,π)$.
dc.description4 pages, RevTeX, 4 eps figures embedded in the text
dc.identifierhttps://arxiv.org/abs/cond-mat/9807214
dc.identifierhttp://arxiv.org/abs/cond-mat/9807214
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28441
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleEffect of Superconductivity on the Incommensurate Magnetic Response of Cuprate Superconductors
dc.typetext

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