Regensburg 2025 – scientific programme

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MA: Fachverband Magnetismus

MA 20: Magnonics II

MA 20.8: Talk

Wednesday, March 19, 2025, 11:30–11:45, H16

Tayloring spin-wave transducers for integrated RF application — •Felix Kohl, Björn Heinz, Matthias Wagner, and Philipp Pirro — Fachbereich Physik and Landesforschungszentrum OPTIMAS, RPTU Kaiserslautern-Landau, 67663 Kaiserslautern, Germany

Current advances in magnonics are increasingly targeted at improving the functional applicability of integrated magnonic devices. Despite the widespread use of transducers based on dynamic Oersted field excitation, there are still inefficiencies due in part to a discrepancy between the scientific understanding of magnetic responses and the technical requirements for practical implementation. Using propagating spin-wave spectroscopy, we investigated spin-wave transducers patterned on yttrium-iron-garnet (YIG) films, demonstrating the capability to tailor transducer characteristics, such as non-reciprocity towards a desired use case. Supported by a modelling approach, our measurements provide a useful framework for designing efficient, application-specific transducers and pave the way for integrated and standalone RF devices such as isolators and filters. This work is an important step towards scalable, energy-efficient magnonic application and demonstrates the potential of magnonics to become a future technology. This research is funded by the European Union within HORIZON-CL4-2021-DIGITAL-EMERGING-01 (No. 101070536,MandMEMS).

Keywords: Spin waves; Non-reciprocity; Spin-wave transducer; magnonic application