title: Angular dependence of the superconducting transition temperature in ferromagnet-superconductor-ferromagnet trilayers.
abstract: The superconducting transition temperature T(c) of a ferromagnet (F)-superconductor (S)-ferromagnet trilayer depends on the mutual orientation of the magnetic moments of the F layers. This effect has been previously observed in F/S/F systems as a T(c) difference between parallel and antiparallel configurations of the F layers. Here we report measurements of T(c) in CuNi/Nb/CuNi trilayers as a function of the angle between the magnetic moments of the CuNi ferromagnets. The observed angular dependence of T(c) is in qualitative agreement with a F/S proximity theory that accounts for the odd triplet component of the condensate predicted to arise for noncollinear orientation of the magnetic moments of the F layers.
authors.affiliation: Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhu
authors.forename: Ilya N
authors.initials: IN
authors.lastname: Krivorotov
authors.forename: Klaus
authors.initials: K
authors.lastname: Halterman
authors.forename: Oriol T
authors.initials: OT
authors.lastname: Valls