Abstract
Temperature-dependent magnetostatic spin wave modes spectra in a ferromagnetic thin film of yttrium–iron–garnet are investigated by means of conventional and photothermally modulated ferromagnetic resonance techniques. Values for the anisotropy field are derived from the evaluation of resonance spectra. In the wide range of temperature the resonance characteristics of spin wave modes spectra are consistent with the Damon–Eshbach theory. Close to the Curie temperature they, however, strongly deviate from the theoretical predictions.
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