Berlin 2024 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 20: Poster I
MA 20.3: Poster
Dienstag, 19. März 2024, 16:30–19:00, Poster A
Impact of metallic magnet stray-field on propagating spin waves — •Matthias Wagner1, Felix Kohl1, Andrea del Giacco2, Maria Cocconcelli2, Silvia Tacchi3, Riccardo Bertacco2, Burkard Hillebrands1, and Philipp Pirro1 — 1Department of Physics, RPTU Kaiserslautern-Landau, 67663 Kaiserslautern, Germany — 2Department of Physics, Politecnico di Milano, Italy — 3Istituto Officina dei Materiali (IOM) del Consiglio Nazionale delle Ricerche (CNR), Sede Secondaria di Perugia, Italy
The properties of magnonic waveguides, such as the static magnetization and the spin-wave dispersion, can be changed using external magnetic fields. For the application of magnonic devices, an energy efficient on-chip realization of a bias field is desirable that can manipulate the spin-wave properties either globally or locally. In our current feasibility study, we utilise the stray field of microstructured ferromagnets as a bias field source, investigating its effect on low damping magnonic waveguides. We employ micro-focused Brillouin light scattering spectroscopy to extract spin-wave properties and their resonance frequencies with high spatial resolution. Our experimental results are supplemented by extensive micromagnetic simulations using Mumax3. Funding by the European Union within the HORIZON-CL42021-DIGITAL-EMERGING-01 Grant No. 101070536 M&MEMS is acknowledged.
Keywords: Spin waves; Magnonics; Magnonic application; Micromagnetic simulation