title: Correlation between magnetism and spin-dependent transport in CoFeB alloys.
abstract: We report a correlation between the spin polarization of the tunneling electrons and the magnetic moment of amorphous CoFeB alloys. Such a correlation is surprising since the spin polarization of the tunneling electrons involves s-like electrons close to the Fermi level (E_{F}), while the magnetic moment mainly arises due to all the d electrons below E_{F}. We show that probing the s and d bands individually provides clear and crucial evidence for such a correlation to exist through s-d hybridization, and demonstrate the tunability of the electronic and magnetic properties of CoFeB alloys.
authors.affiliation: Department of Applied Physics, cNM, Eindhoven University of Technology, 5600 MB, The Netherlands.
authors.forename: P V
authors.initials: PV
authors.lastname: Paluskar
authors.forename: R
authors.initials: R
authors.lastname: Lavrijsen
authors.forename: M
authors.initials: M
authors.lastname: Sicot
authors.forename: J T
authors.initials: JT
authors.lastname: Kohlhepp
authors.forename: H J M
authors.initials: HJ
authors.lastname: Swagten
authors.forename: B
authors.initials: B
authors.lastname: Koopmans