title: Giant spin Hall effect induced by skew scattering from bismuth impurities inside thin film CuBi alloys.
abstract: We demonstrate that a giant spin Hall effect (SHE) can be induced by introducing a small amount of Bi impurities in Cu. Our analysis, based on a new three-dimensional finite element treatment of spin transport, shows that the sign of the SHE induced by the Bi impurities is negative and its spin Hall (SH) angle amounts to -0.24. Such a negative large SH angle in CuBi alloys can be explained by applying the resonant scattering model proposed by Fert and Levy [Phys. Rev. Lett. 106, 157208 (2011)] to 6p impurities.
authors.affiliation: Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba, Japan. niimi@issp.u-tokyo.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Niimi
authors.forename: Y
authors.initials: Y
authors.lastname: Kawanishi
authors.forename: D H
authors.initials: DH
authors.lastname: Wei
authors.forename: C
authors.initials: C
authors.lastname: Deranlot
authors.forename: H X
authors.initials: HX
authors.lastname: Yang
authors.forename: M
authors.initials: M
authors.lastname: Chshiev
authors.forename: T
authors.initials: T
authors.lastname: Valet
authors.forename: A
authors.initials: A
authors.lastname: Fert
authors.forename: Y
authors.initials: Y
authors.lastname: Otani