Regensburg 2010 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 33: Poster II

MA 33.72: Poster

Freitag, 26. März 2010, 11:00–14:00, Poster B1

Broadband spin-wave spectroscopy on permalloy plain films at low temperature — •Florian Brandl, Sebastian Neusser, Georg Dürr, and Dirk Grundler — Lehrstuhl für Physik funktionaler Schichtsysteme, Technische Universität München, Physik Department, James-Franck-Straße 1, D-85747 Garching b. München, Germany

We investigate spin wave propagation in Ni₈₀Fe₂₀ (permalloy) thin films. Using, both, the vector network analyzer ferromagnetic resonance (VNA-FMR) and propagating spin wave spectroscopy (PSWS) techniques we perform temperature dependent measurements on permalloy thin films. An external magnetic field of up to 2.5 T is applied along the growth direction of the thin films. We study resonance frequencies and damping of standing and propagating spin waves from helium to room temperature. We report data obtained in the time and frequency domain using PSWS and VNA-FMR, respectively. We acknowledge financial support through the German excellence cluster “Nanosystems Initiative Munich”.