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Dresden 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...

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MA: Fachverband Magnetismus

MA 42: Posters Magnetism I

MA 42.6: Poster

Mittwoch, 18. März 2020, 15:00–18:00, P3

Spinwave propagation and mode conversion in an asymmetric YIG fork structure — •Julius Balliet1, Martin Kewenig1, Frank Heussner1, Felix Kohl1, Bert Lägel2, Carsten Dubs3, Andrii Chumak4, Philipp Pirro1, and Burkard Hillebrands11Fachbereich 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 are collective excitations in the spin system of a magnetic material. They show many characteristics, which make them suitable as data carriers in data processing. A promising device is a spin wave based majority gate consisting of three inputs and one output in a forklike structure. As a foundation to implement such a nanoscale majority gate, the spin wave propagation in a Yttrium-Iron-Garnet fork microstructure was observed via frequency-resolved Brillouin-light-scattering spectroscopy in addition to micromagnetic simulations. Two-dimensional spin wave intensity distributions of the combining area of two inputs show that the spin waves propagate in beams not parallel to the connecting waveguide which ends in a zigzag intensity profile. 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).

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