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arXiv · 2410.21766

Electromotive force generation in a ferromagnetic metal thin film under the ferromagnetic resonance excitation with permanent magnets

Ryutoku Fujii·Eiji Shikoh
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Abstract

Ferromagnetic resonance (FMR) excitation of a ferromagnetic metal single-layer film was tried by using a couple of permanent magnets as the source of the uniform static magnetic field and by using a co-planer waveguide connected with a network analyzer as the source of the radiofrequency (RF) magnetic field. A typical FMR spectrum of a ferromagnetic Ni$_{80}$Fe$_{20}$ thin film was successfully obtained and a clear electromotive force (EMF) was generated in the Ni$_{80}$Fe$_{20}$ thin film under the FMR excitation with the permanent magnets. That is, we achieved EMF generation in a Ni$_{80}$Fe$_{20}$ thin film under the FMR excitation with the permanent magnets, which can be applied as a simple energy transduction technology from ambient RF energy to electrical energy.

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Ryutoku Fujii, Eiji Shikoh. 2024-10-29. Electromotive force generation in a ferromagnetic metal thin film under the ferromagnetic resonance excitation with permanent magnets. https://arxiv.org/abs/2410.21766

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