Regensburg 2019 – scientific programme

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MA: Fachverband Magnetismus

MA 15: Magnetism Poster A

MA 15.38: Poster

Tuesday, April 2, 2019, 10:00–13:00, Poster E

Realization of a micro-scaled spin-wave majority gate — •Martin Kewenig¹, Thomas Brächer¹, Carsten Dubs², Philipp Pirro¹, Andrii Chumak¹, and Burkard Hillebrands¹ — ¹Fachbereich Physik and Landesforschungszentrum OPTIMAS, TU Kaiserslautern, Kaiserslautern, Germany — ²INNOVENT e.V. Technologieentwicklung Jena, 07745 Jena, Germany

Spin-wave logic devices offer large advantages compared to modern CMOS-based elements. An example for such a logic element is the majority gate, in which the logical output is given by the majority of the logical inputs. The operation of a macroscopic spin-wave majority gate made from a 5.4 μm-thick yttrium iron garnet (YIG) film is already proven, the output phase of the signal was defined by the majority of the input phases. The miniaturization of the device is naturally the next step and the functionality of a micro-scaled spin-wave majority gate has already been investigated by numerical methods. We will show spin-wave dynamics in microstructured YIG waveguides and microstructured combiner areas. In addition, we will present the fabrication and investigation of a micro-scaled spin-wave majority gate device made from a 70 nm and a 85 nm thick YIG film. This research has been supported by: DFG SFB/TRR 173 Spin+X, Project B01, ERC Starting Grant 678309 MagnonCircuit, DFG (DU 1427/2-1)and the EU Horizon 2020 research and innovation programme within the CHIRON project (contract number 801055).