title: Spin filtering of free electrons by magnetic multilayers: towards an efficient self-calibrated spin polarimeter.
abstract: An asymmetrical ferromagnetic cobalt bilayer (18 nm Au/0.8 nm Co/2.2 nm Au/1.3 nm Co/1.5 nm Au) operates as a self-calibrated spin polarimeter with a high spin selectivity for free electrons injected at a few eV above the Fermi level. We present the analysis of transmitted currents as a function of the incident energy, based on a model of spin polarization dilution into the first gold layer and ballistic transport close to the vacuum level throughout the sample.
authors.affiliation: Laboratoire de Physique de la Matière Condensée (UMR 7643-CNRS), Ecole Polytechnique, F-91128 Palaiseau, France. c.cacho@dl.ac.uk
authors.forename: C
authors.initials: C
authors.lastname: Cacho
authors.forename: Y
authors.initials: Y
authors.lastname: Lassailly
authors.forename: H J
authors.initials: HJ
authors.lastname: Drouhin
authors.forename: G
authors.initials: G
authors.lastname: Lampel
authors.forename: J
authors.initials: J
authors.lastname: Peretti