Abstract
A Green-function theory is presented for the Brillouin light scattering from hybridized surface and bulk spin-wave modes propagating in perpendicularly magnetized films with general asymmetric pinning at the surfaces. The calculations include a spin-wave theory with mixed exchange boundary conditions for the excitation spectrum and a Green-function (linear-response) formalism for light scattering from magnetic films. The influence of dipole-dipole hybridization of the spin-wave dispersion branches on the calculated light-scattering intensities is taken into account, and the dependence of the Brillouin spectra on the pinning conditions is evaluated. Applications of the theory to thin films of Fe and EuO are described.
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