August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【102】Nano-scale magnonic directional coupler

Aug 31, 2021, 1:45 PM
Room A

Room A

Talk Condensed Matter Physics (KOND) Condensed Matter Physics


Prof. Andrii Chumak (University of Vienna)


Magnons, the quanta of spin waves, could be used to encode information in beyond-Moore computing applications. Here, we report a nano-scale magnonic directional coupler based on yttrium iron garnet , which can function as circuit building blocks. The coupler consists of single-mode waveguides with a width of 350 nm. We use the amplitude of a spin wave to encode information and to guide it to one of the two outputs of the coupler depending on the signal magnitude, frequency and the applied magnetic field. Using micromagnetic simulations, we also propose an integrated magnonic half-adder that consists of two directional couplers and we investigate its functionality for information processing.

Primary author

Prof. Andrii Chumak (University of Vienna)


Qi Wang (University of Vienna) Mr Martin Kewenig (TU Kaiserslautern, Germany) Mr Michael Schneider (TU Kaiserslautern, Germany) Dr Roman Verba (Institute of Magnetism, Kyiv, Ukraine) Mr Felix Kohl (TU Kaiserslautern, Germany) Mr Björn Heinz (TU Kaiserslautern, Germany) Mr Moritz Geilen (TU Kaiserslautern, Germany) Mr Morteza Mohseni (TU Kaiserslautern, Germany) Dr Bert Lägel (TU Kaiserslautern, Germany) Dr Florin Ciubotaru (Imec, Leuven, Belgium) Dr Christoph Adelmann (Imec, Leuven, Belgium) Dr Carsten Dubs (INNOVENT e.V., Technologieentwicklung, Jena, Germany) Prof. Sorin Cotofana (Delft University of Technology, Delft, The Netherlands) Dr Oleksandr Dobrovolskiy (University of Vienna) Dr Thomas Brächer (TU Kaiserslautern, Germany) Prof. Philipp Pirro (TU Kaiserslautern, Germany)

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