Spin resonance in the d-wave superconductor CeCoIn5

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dc.contributor.author Stock, C.
dc.contributor.author Broholm, C.
dc.contributor.author Hudis, J.
dc.contributor.author Kang, H.J.
dc.contributor.author Petrovic, C.
dc.date.accessioned 2009-12-29T18:28:36Z
dc.date.available 2009-12-29T18:28:36Z
dc.date.issued 2008-02-29
dc.identifier.citation Physical Review Letters 29 Feb. 2008, vol.100, no.8, pp. 087001-1-4 en
dc.identifier.uri http://jhir.library.jhu.edu/handle/1774.2/33736
dc.description.abstract Neutron 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
dc.description.provenance Submitted by Susan Vazakas (svazakas@jhu.edu) on 2009-12-29T16:38:09Z No. of bitstreams: 1 Broholm Spin resonance 2008.pdf: 343600 bytes, checksum: b39fa8fc751770d99e95a1723ec9e63f (MD5) en
dc.description.provenance Approved for entry into archive by David Reynolds(davidr@jhu.edu) on 2009-12-29T18:28:36Z (GMT) No. of bitstreams: 1 Broholm Spin resonance 2008.pdf: 343600 bytes, checksum: b39fa8fc751770d99e95a1723ec9e63f (MD5) en
dc.description.provenance Made available in DSpace on 2009-12-29T18:28:36Z (GMT). No. of bitstreams: 1 Broholm Spin resonance 2008.pdf: 343600 bytes, checksum: b39fa8fc751770d99e95a1723ec9e63f (MD5) Previous issue date: 2008-02-29 en
dc.language.iso en_US en
dc.publisher American Physical Society en
dc.subject spin resonance en
dc.subject neutron scattering en
dc.subject indium alloys en
dc.subject heavy fermion superconductors en
dc.subject d-wave superconductivity en
dc.subject commensurate antiferromagnetic spin fluctuations en
dc.subject isotropic spin correlations en
dc.subject incommensurate wave vector en
dc.subject cobalt alloys en
dc.subject cerium alloys en
dc.subject antiferromagnetism en
dc.subject spectral weight en
dc.subject low-energy transfers en
dc.subject f-electron magnetism en
dc.subject d-wave gap order parameter en
dc.title Spin resonance in the d-wave superconductor CeCoIn5 en
dc.type Article en

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