Electrical spin-wave spectroscopy in nanoscale waveguides with nonuniform magnetization. - Talmelli, Giacomo; Narducci, Daniele; Vanderveken, Frederic; Heyns, Marc; Irrera, Fernanda; Asselberghs, Inge; Radu, Iuliana P.; Adelmann, Christoph; Ciubotaru, Florin (Applied Physics Letters, 2021)