In this thesis, the two ferrimagnetic iron garnet materials yttrium iron garnet (YIG) and gadolinium iron garnet (GdIG) are investigated using ferromagnetic resonance (FMR). An experimental setup and a novel method for the analysis of frequency-swept broadband FMR is presented, which is used to quantify the magnetization damping and the magnetic anisotropy of YIG and GdIG. Furthermore, the coupling of magnetic excitations to cavity photons, and the resonant generation of spin currents in iron garnets is investigated.
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In this thesis, the two ferrimagnetic iron garnet materials yttrium iron garnet (YIG) and gadolinium iron garnet (GdIG) are investigated using ferromagnetic resonance (FMR). An experimental setup and a novel method for the analysis of frequency-swept broadband FMR is presented, which is used to quantify the magnetization damping and the magnetic anisotropy of YIG and GdIG. Furthermore, the coupling of magnetic excitations to cavity photons, and the resonant generation of spin currents in iron ga...
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