Dresden 2026 – scientific programme

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MA: Fachverband Magnetismus

MA 39: Poster Magnetism II

MA 39.14: Poster

Wednesday, March 11, 2026, 18:00–21:00, P2

Generation of Floquet-like sidebands in spin-wave systems induced by surface accustic waves — •Tim Vogel, Matthias Wagner, Björn Heinz, and Philipp Pirro — Fachbereich Physik and Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern-Landau

The interaction between spin waves (SWs) and surface accoustic waves (SAWs) offers promising opportunities for advanced magnonic and spintronic applications. In this work, we investigate the generation of Floquet-like frequency combs in the GHz spin-wave spectrum with low-frequency SAWs in the MHz range as the Floquet-drive. We study the excitation of these states by coupling SAWs of different frequencies and incidence angles to SWs in both Damon-Eshbach and backward-volume geometry. We further explore these effects in multiple material systems to validate an analytical model describing the modified spin-wave dispersion under SAW driving. Our results contribute to a deeper understanding of magnon-phonon interactions and the conditions under which Floquet-like states emerge.

We acknowledge funding by the European Union via Horizon Europe project MandMEMS, Grant No. 101070536.

Keywords: Magneto-elastics; Surface accustic waves; Spin-waves; Floquet; Mumax3