We report on the design, fabrication, and characterization of compact tunable yttrium iron garnet (YIG) based RF resonators based on μm-sized spin-wave cavities. Inductive antennas with both ladder and meander configurations were used as transducers between spin waves and RF signals. The excitation of ferromagnetic resonance and standing spin waves in the YIG cavities led to sharp resonances with quality factors up to 350. The observed spectra were in excellent agreement with a model based on the spin-wave dispersion relations in YIG, showing a high magnetic field tunability of about 29 MHz/mT.
Cite
@article{arxiv.2101.02909,
title = {Compact tunable YIG-based RF resonators},
author = {José Diogo Costa and Bruno Figeys and Xiao Sun and Nele Van Hoovels and Harrie A. C. Tilmans and Florin Ciubotaru and Christoph Adelmann},
journal= {arXiv preprint arXiv:2101.02909},
year = {2021}
}
Comments
13 pages, 5 figures. This project has received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No. 801055 "Spin Wave Computing for Ultimately-Scaled Hybrid Low-Power Electronics" - CHIRON