title: Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet.
abstract: We report direct electrical detection of spin pumping, using a lateral normal-metal/ferromagnet/normal-metal device, where a single ferromagnet in ferromagnetic resonance pumps spin-polarized electrons into the normal metal, resulting in spin accumulation. The resulting backflow of spin current into the ferromagnet generates a dc voltage due to the spin-dependent conductivities of the ferromagnet. By comparing different contact materials (Al and/or Pt), we find, in agreement with theory, that the spin-related properties of the normal metal dictate the magnitude of the dc voltage.
authors.affiliation: Physics of Nanodevices Group, Materials Science Centre, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
authors.forename: M V
authors.initials: MV
authors.lastname: Costache
authors.forename: M
authors.initials: M
authors.lastname: Sladkov
authors.forename: S M
authors.initials: SM
authors.lastname: Watts
authors.forename: C H
authors.initials: CH
authors.lastname: van der Wal
authors.forename: B J
authors.initials: BJ
authors.lastname: van Wees