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

Yaron, U; Gammel, PL; Boebinger, GS; Aeppli, G; Schiffer, P; Bucher, E; Bishop, DJ; ... Mortensen, K; + view all (1997) Small angle neutron scattering-studies of the vortex lattice in the UPt3 mixed state: Direct structural evidence for the B → C transition. Physical Review Letters , 78 (16) 3185 - 3188. 10.1103/PhysRevLett.78.3185. Green open access

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Abstract

Small angle neutron scattering studies of the flux line lattice (FLL) in UPt3 for fields H⊥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.

Type: Article
Title: Small angle neutron scattering-studies of the vortex lattice in the UPt3 mixed state: Direct structural evidence for the B → C transition
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.78.3185
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.78.3185
Language: English
Additional information: © 1997 The American Physical Society
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/292011
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