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dc.contributor.authorStock, C.
dc.contributor.authorBroholm, C.
dc.contributor.authorHudis, J.
dc.contributor.authorKang, H.J.
dc.contributor.authorPetrovic, C.
dc.date.accessioned2009-12-29T18:28:36Z
dc.date.available2009-12-29T18:28:36Z
dc.date.issued2008-02-29
dc.identifier.citationPhysical Review Letters 29 Feb. 2008, vol.100, no.8, pp. 087001-1-4en_US
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/33736
dc.description.abstractNeutron scattering is used to probe antiferromagnetic spin fluctuations in the d-wave heavy fermion superconductor CeCoIn5 (Tc=2.3 K). Superconductivity develops from a state with slow (ℎΓ=0.3±0.15 meV) commensurate [Q0=(1/2,1/2,1/2)] antiferromagnetic spin fluctuations and nearly isotropic spin correlations. The characteristic wave vector in CeCoIn5 is the same as CeIn3 but differs from the incommensurate wave vector measured in antiferromagnetically ordered CeRhIn5. A sharp spin resonance (ℎΓ<0.07 meV) at ℎω=0.60±0.03 meV develops in the superconducting state removing spectral weight from low-energy transfers. The presence of a resonance peak is indicative of strong coupling between f-electron magnetism and superconductivity and consistent with a d-wave gap order parameter satisfying Δ(q+Q0)=-Δ(q).en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.subjectspin resonanceen_US
dc.subjectneutron scatteringen_US
dc.subjectindium alloysen_US
dc.subjectheavy fermion superconductorsen_US
dc.subjectd-wave superconductivityen_US
dc.subjectcommensurate antiferromagnetic spin fluctuationsen_US
dc.subjectisotropic spin correlationsen_US
dc.subjectincommensurate wave vectoren_US
dc.subjectcobalt alloysen_US
dc.subjectcerium alloysen_US
dc.subjectantiferromagnetismen_US
dc.subjectspectral weighten_US
dc.subjectlow-energy transfersen_US
dc.subjectf-electron magnetismen_US
dc.subjectd-wave gap order parameteren_US
dc.titleSpin resonance in the d-wave superconductor CeCoIn5en_US
dc.typeArticleen_US


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