Hernández Ferràs, Joan ManelJiménez Torrejón, Sergio2025-09-092025-09-092025-06https://hdl.handle.net/2445/223060Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2025, Tutor: Joan Manel Hernàndez FerràsThis work presents the study of a thin film of yttrium iron garnet (YIG) deposited on a gadolinium gallium garnet (GGG) substrate using ferromagnetic resonance (FMR) measurements, with the aim of analyze the magnon-phonon coupling under resonant conditions. Based on the study of the absorbed energy S21, as a function of frequency and magnetic field, a periodic structure following the FMR resonance profile has been observed. The analysis reveals that the periodicity is consistent with a stationary phonon mode in the GGG substrate. Finally, the magnetic properties of the sample have been determined.6 p.application/pdfengcc-by-nc-nd (c) Jiménez, 2025http://creativecommons.org/licenses/by-nc-nd/3.0/es/Física de l'estat sòlidMagnetismeTreballs de fi de grauSolid state physicsMagnetismBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess