Abstract
The dependence of the linewidth 2ΔHn of the spin wave resonance (SWR) modes on the thickness h2 of a pinning layer in two-layer garnet ferrite films is sharply different for the perpendicular and parallel orientations of an external magnetic field relative to the film plane. The increase in 2ΔHn with decreasing h2 in the case of the perpendicular field orientation is related to the growth in the relative contribution of the region of exponential decay to the total dissipation of the spin wave energy. The periodic variation of 2ΔHn observed for the parallel field orientation is explained by special features of the spin wave configuration in the pinning layer.
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