Spin pumping driven by magnon-polaritons in a ferromagnet-coplanar superconducting resonator hybrid system
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910995105972224 |
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| author | Wagle, Dinesh Li, Yi Rai, Anish Polakovic, Tomas Novosad, Valentine Jungfleisch, M. Benjamin |
| author_facet | Wagle, Dinesh Li, Yi Rai, Anish Polakovic, Tomas Novosad, Valentine Jungfleisch, M. Benjamin |
| contents | We demonstrate spin pumping driven by a strongly coupled magnon-photon system using a ferromagnet-coplanar superconducting resonator hybrid system at 1.4 K. Electrical readout via the inverse spin-Hall effect reveals characteristic coupling features, including mode splitting and linewidth broadening, demonstrating the electrical detection of strongly coupled microwave photons and magnons. The magnon-photon coupling strength obtained by combined spin pumping and inverse spin-Hall effect measurements is compared to microwave transmission experiments. Furthermore, microwave power-dependent measurements reveal a decrease in the coupling strength with increasing microwave power alongside the onset of nonlinearities of the superconducting resonator above a critical microwave power threshold. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_06996 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spin pumping driven by magnon-polaritons in a ferromagnet-coplanar superconducting resonator hybrid system Wagle, Dinesh Li, Yi Rai, Anish Polakovic, Tomas Novosad, Valentine Jungfleisch, M. Benjamin Mesoscale and Nanoscale Physics Materials Science Other Condensed Matter We demonstrate spin pumping driven by a strongly coupled magnon-photon system using a ferromagnet-coplanar superconducting resonator hybrid system at 1.4 K. Electrical readout via the inverse spin-Hall effect reveals characteristic coupling features, including mode splitting and linewidth broadening, demonstrating the electrical detection of strongly coupled microwave photons and magnons. The magnon-photon coupling strength obtained by combined spin pumping and inverse spin-Hall effect measurements is compared to microwave transmission experiments. Furthermore, microwave power-dependent measurements reveal a decrease in the coupling strength with increasing microwave power alongside the onset of nonlinearities of the superconducting resonator above a critical microwave power threshold. |
| title | Spin pumping driven by magnon-polaritons in a ferromagnet-coplanar superconducting resonator hybrid system |
| topic | Mesoscale and Nanoscale Physics Materials Science Other Condensed Matter |
| url | https://arxiv.org/abs/2506.06996 |