Small angle neutron scattering studies of the vortex lattice in the UPt3 mixed state: Direct structural evidence for the B->C transition

U. Yaron, P.L. Gammel, G.S. Boebinger, G. Aeppli, P. Schiffer, E. Bucher, D.J. Bishop, C. Broholm, K. Mortensen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    Small angle neutron scattering studies of the flux line lattice (FLL) in UPt3 for fields H perpendicular to c provide direct microscopic evidence for the 5 kOe B --> C transition. We find a pronounced maximum in the longitudinal correlation length of the FLL at the transition and an abrupt change in the field dependence of the scattered intensity which can be interpreted as a 15% decrease in the coherence length and a 9% increase in the penetration depth, consistent with discontinuities in the critical fields. Finally, in the low field phase, the FLL distortion evolves roughly linearly with field, while in the high field phase it appears to be less field dependent.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume78
    Issue number16
    Pages (from-to)3185-3188
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1997

    Fingerprint Dive into the research topics of 'Small angle neutron scattering studies of the vortex lattice in the UPt<sub>3</sub> mixed state: Direct structural evidence for the B->C transition'. Together they form a unique fingerprint.

    Cite this