title: Direct observation of the flux-line vortex glass phase in a type II superconductor.
abstract: The order of the vortex state in La1.9Sr0.1CuO4 is probed using muon-spin rotation and small-angle neutron scattering. A transition from a Bragg glass to a vortex glass is observed, where the latter is composed of disordered vortex lines. In the vicinity of the transition the microscopic behavior reflects a delicate interplay of thermally induced and pinning-induced disorder.
authors.affiliation: School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, United Kingdom.
authors.forename: U
authors.initials: U
authors.lastname: Divakar
authors.forename: A J
authors.initials: AJ
authors.lastname: Drew
authors.forename: S L
authors.initials: SL
authors.lastname: Lee
authors.forename: R
authors.initials: R
authors.lastname: Gilardi
authors.forename: J
authors.initials: J
authors.lastname: Mesot
authors.forename: F Y
authors.initials: FY
authors.lastname: Ogrin
authors.forename: D
authors.initials: D
authors.lastname: Charalambous
authors.forename: E M
authors.initials: EM
authors.lastname: Forgan
authors.forename: G I
authors.initials: GI
authors.lastname: Menon
authors.forename: N
authors.initials: N
authors.lastname: Momono
authors.forename: M
authors.initials: M
authors.lastname: Oda
authors.forename: C D
authors.initials: CD
authors.lastname: Dewhurst
authors.forename: C
authors.initials: C
authors.lastname: Baines