title: Time-resolved measurement of propagating spin waves in ferromagnetic thin films.
abstract: We measure the propagation of spatially localized spin waves in NiFe thin films through local inductive detection of the dynamic magnetization. A pulsed magnetic field excites a linear superposition of spin wave modes with a distribution that is predominantly driven by the spatial dependence of the in-plane excitation field. The results of numerical micromagnetic calculations exhibit excellent agreement with experiment and show that a comprehensive account of spatial nonuniformity and propagation is necessary to accurately measure the intrinsic damping rate.
authors.affiliation: Seagate Research, 1251 Waterfront Place, Pittsburgh, Pennsylvania 15222, USA. Mark.Covington@seagate.com
authors.forename: M
authors.initials: M
authors.lastname: Covington
authors.forename: T M
authors.initials: TM
authors.lastname: Crawford
authors.forename: G J
authors.initials: GJ
authors.lastname: Parker