Berry Phase Coupling and the Cuprate Neutron Scattering Resonance

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dc.creatorLee, Wei-Cheng
dc.creatorMacDonald, A. H.
dc.date2009-05-04
dc.date.accessioned2026-07-07T13:11:32Z
dc.date.available2026-07-07T13:11:32Z
dc.descriptionWe examine the influence of coupling between particle-hole and particle-particle spin fluctuations on the inelastic neutron scattering resonance (INSR) in cuprate superconductors in both weak and strong interaction limits. For weak-interactions in the particle-hole channel, we find that the interchannel coupling can eliminate the resonance. For strong interactions which drive the system close to a $\bm{Q}=(π,π)$ magnetic instablity, the resonance frequency always approaches zero but its value is influenced by the interchannel coupling. We comment on constraints imposed on cuprate physics by the INSR phenomenology, and a comparison between the cuprates and the newly-discovered iron pnictide superconductors is discussed.
dc.description5 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0905.0464
dc.identifierhttp://arxiv.org/abs/0905.0464
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229310
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleBerry Phase Coupling and the Cuprate Neutron Scattering Resonance
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