Dresden 2009 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 40: Poster II: Bio- and Molecular Magnetism (1-9); Magnetic Coupling Phenomena/Exchange Bias (10-15); Magnetic Particlicles and Clusters (16-29); Micro and Nanostructured Magnetic Materials (30-51); Multiferroics (52-64); Spin Injection in Heterostructures (65-67); Spin-Dyn./Spin-Torque (68-93); Spindependent Transport (94-108)

MA 40.91: Poster

Freitag, 27. März 2009, 11:00–14:00, P1A

Inductive detection of spin wave propagation in permalloy thin films — •Georg Dürr, Sebastian Neusser, Bernhard Botters, and Dirk Grundler — Lehrstuhl für Physik funktionaler Schichtsysteme, Technische Universität München, Physik Department, James-Franck-Str. 1, D-85747 Garching b. München, Germany

Spin wave propagation in permalloy thin films is investigated, both in the frequency and the time domain. Different configurations of two coplanar waveguides used as emitter and receiver of spin waves are presented. Using a broadband vector network analyzer we measure the spin wave eigenfrequencies in the frequency domain. In a further experiment the transmission of pulsed induced spin waves in the time domain is detected using a digital sampling oscilloscope. All measurements are performed at room temperature with an external field applied in different directions. We discuss the data in the light of the spin wave propagation based on dispersion relations of permalloy thin films. We acknowledge financial support through the German excellence cluster "Nanosystems Initiative Munich".