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MA: Fachverband Magnetismus
MA 42: Posters Magnetism I
MA 42.1: Poster
Mittwoch, 18. März 2020, 15:00–18:00, P3
Nonlinear effects in nano-YIG — •Martin Kewenig1, Morteza Mohseni1, Julius Balliet1, Felix Kohl1, Michael Schneider1, Björn Heinz1, Qi Wang1, Bert Lägel2, Carsten Dubs3, Andrii Chumak4, Philipp Pirro1, and Burkard Hillebrands1 — 1Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universität Kaiserslautern, Kaiserslautern, Germany — 2Nano Structuring Center, Technische Universität Kaiserslautern, Kaiserslautern, Germany — 3INNOVENT e.V., Technologieentwicklung, Jena, Germany — 4Faculty of Physics, University of Vienna, Vienna, Austria
Spin waves show many characteristics, which make them suitable for future information technology. For example, they feature intrinsic strong nonlinear behavior. Since nonlinear effects are important to build logic devices, it is of high interest to understand the underlying mechanism and to study nonlinear effects in nanoscaled devices. We show a nonlinear scattering effect from the fundamental mode to the first and second perpendicular standing spin-wave mode in a micro structured, 85 nm thick Yttrium-Iron-Garnet waveguide. The scattering process has been investigated by frequency- and time-resolved Brillouin-light-scattering spectroscopy. Field- and power-dependent measurements indicate a clear threshold behavior of the investigated phenomenon. This research has been supported by: EU Horizon 2020 research and innovation programme within the CHIRON project (contract number 801055), DFG SFB/TRR 173 Spin+X, Project B01, ERC Starting Grant 678309 MagnonCircuit and DFG (DU 1427/2-1).