Type of Publication: | Journal article |
Publication status: | Published |
Author: | Maier-Flaig, Hannes; Harder, Michael; Klingler, Stefan; Qiu, Zhiyong; Saitoh, Eiji; Weiler, Mathias; Geprägs, Stephan; Gross, Rudolf; Gönnenwein, Sebastian T. B.; Huebl, Hans |
Year of publication: | 2017 |
Published in: | Applied Physics Letters ; 110 (2017), 13. - 132401. - American Institute of Physics (AIP). - ISSN 0003-6951. - eISSN 1077-3118 |
ArXiv-ID: | arXiv:1701.08969v3 |
DOI (citable link): | https://dx.doi.org/10.1063/1.4979409 |
Summary: |
We experimentally study the magnon-photon coupling in a system consisting of a compensating ferrimagnet gadolinium iron garnet (GdIG) and a three-dimensional microwave cavity. The temperature is varied in order to tune the GdIG magnetization and to observe the transition from the weak coupling regime to the strong coupling regime. By measuring and modelling the complex reflection parameter of the system, the effective coupling rate geff and the magnetization Meff of the sample are extracted. Comparing geff with the magnon and the cavity decay rate, we conclude that the strong coupling regime is easily accessible using GdIG. We show that the effective coupling strength follows the predicted square root dependence on the magnetization.
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Subject (DDC): | 530 Physics |
Refereed: | Yes |
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MAIER-FLAIG, Hannes, Michael HARDER, Stefan KLINGLER, Zhiyong QIU, Eiji SAITOH, Mathias WEILER, Stephan GEPRÄGS, Rudolf GROSS, Sebastian T. B. GÖNNENWEIN, Hans HUEBL, 2017. Tunable magnon-photon coupling in a compensating ferrimagnet : from weak to strong coupling. In: Applied Physics Letters. American Institute of Physics (AIP). 110(13), 132401. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4979409
@article{MaierFlaig2017-01-31T10:03:15ZTunab-51820, title={Tunable magnon-photon coupling in a compensating ferrimagnet : from weak to strong coupling}, year={2017}, doi={10.1063/1.4979409}, number={13}, volume={110}, issn={0003-6951}, journal={Applied Physics Letters}, author={Maier-Flaig, Hannes and Harder, Michael and Klingler, Stefan and Qiu, Zhiyong and Saitoh, Eiji and Weiler, Mathias and Geprägs, Stephan and Gross, Rudolf and Gönnenwein, Sebastian T. B. and Huebl, Hans}, note={Article Number: 132401} }