title: Muon-spin rotation measurements of an unusual vortex-glass phase in the layered superconductor Bi2.15Sr1.85CaCu2O8+δ.
abstract: Muon-spin rotation measurements, performed on the mixed state of the classic anisotropic superconductor Bi(2.15)Sr(1.85)CaCu(2)O(8+δ), obtain quantities directly related to two- and three-body correlations of vortices in space. A novel phase diagram emerges from such local probe measurements of the bulk, revealing an unusual glassy state at intermediate fields which appears to freeze continuously from the equilibrium vortex liquid but differs both from the lattice and the conventional high-field vortex glass state in its structure.
authors.affiliation: School of Physics and Astronomy, University of St Andrews, Fife KY16 9SS, United Kingdom.
authors.forename: D O G
authors.initials: DO
authors.lastname: Heron
authors.forename: S J
authors.initials: SJ
authors.lastname: Ray
authors.forename: S J
authors.initials: SJ
authors.lastname: Lister
authors.forename: C M
authors.initials: CM
authors.lastname: Aegerter
authors.forename: H
authors.initials: H
authors.lastname: Keller
authors.forename: P H
authors.initials: PH
authors.lastname: Kes
authors.forename: G I
authors.initials: GI
authors.lastname: Menon
authors.forename: S L
authors.initials: SL
authors.lastname: Lee