Magnetic field splitting of the spin resonance in CeCoIn5

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dc.contributor.authorStock, Cen_AU
dc.contributor.authorBroholm, Cen_AU
dc.contributor.authorZhao, Yen_AU
dc.contributor.authorDemmel, Fen_AU
dc.contributor.authorKang, HJen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorPetrovic, Cen_AU
dc.date.accessioned2014-06-05T05:30:12Zen_AU
dc.date.available2014-06-05T05:30:12Zen_AU
dc.date.issued2012-10-17en_AU
dc.date.statistics2014-06-05en_AU
dc.description.abstractNeutron scattering in strong magnetic fields is used to show the spin resonance in superconducting CeCoIn(5) (T(c) = 2.3 K) is a doublet. The underdamped resonance ((h) over bar Gamma = 0.069 +/- 0.019 meV) Zeeman splits into two modes at E(+/-) = (h) over bar Omega(0) +/- mu(B mu 0)H with alpha = 0.96 +/- 0: 05. A linear extrapolation of the lower peak reaches zero energy at 11.2 +/- 0.5 T, near the critical field for the incommensurate "Q phase." Kenzelmann et al. [Science 321, 1652 (2008)] This, taken with the integrated weight and polarization of the low-energy mode (E(-)), indicates that the Q phase can be interpreted as a Bose condensate of spin excitons. © 2012, American Physical Society.en_AU
dc.identifier.articlenumber167207en_AU
dc.identifier.citationStock, C., Broholm, C., Zhao, Y., Demmel, F., Kang, H. J., Rule, K. C., & Petrovic, C. (2012). Magnetic field splitting of the spin resonance in CeCoIn5. Physical Review Letters, 109(16), 167207. doi:10.1103/PhysRevLett.109.167207en_AU
dc.identifier.govdoc4776en_AU
dc.identifier.issn0031-9007en_AU
dc.identifier.issue16en_AU
dc.identifier.journaltitlePhysical Review Lettersen_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevLett.109.167207en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5676en_AU
dc.identifier.volume109en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectSuperconductivityen_AU
dc.subjectPolarizationen_AU
dc.subjectGamma radiationen_AU
dc.subjectSpinen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectNeutronsen_AU
dc.titleMagnetic field splitting of the spin resonance in CeCoIn5en_AU
dc.typeJournal Articleen_AU
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