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Vortex dynamics in coupled ferromagnetic multilayer structures

Chou, K. ; Puzic, A. ; Stoll, H. ; Schütz, G. ; Wayenberge, B. ; Tyliszczak, T. ; Rott, K. ; Reiss, G. ; Brückl, H. ; Neudecker, I. ; Weiss, Dieter ; Back, Christian



Abstract

Magnetization dynamics in ferromagnetic multilayer structures was studied by time- resolved transmission x-ray microscopy. A square- shaped 11 m2 trilayer structure consisting of Co20 nm/Cu10 nm /Permalloy Ni80Fe2020 nm was investigated. Each ferromagnetic layer showed a Landau-like domain configuration with a single vortex. A gyrotropic vortex motion was excited by an in-plane magnetic ...

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