Morphology of the Superconducting Vortex Lattice in Ultrapure Niobium

S Muehlbauer, C Pfleiderer, P Boeni, M Laver, Edward Forgan, David Fort, U Keiderling, G Behr

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36 Citations (Scopus)


The morphology of the superconducting flux line lattice (FLL) of Nb comprises gradual variations with various lock-in transitions and symmetry breaking rotations. We report a comprehensive small-angle neutron scattering study of the FLL in an ultrapure single crystal of Nb as a function of the orientation of the applied magnetic field. We attribute the general morphology of the FLL and its orientation to three dominant mechanisms; first, nonlocal contributions, second, the transition between open and closed Fermi surface sheets and, third, the intermediate mixed state between the Meissner and the Shubnikov phase.
Original languageEnglish
Pages (from-to)136408
Number of pages1
JournalPhysical Review Letters
Issue number13
Publication statusPublished - 1 Apr 2009


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