Spin-wave resonance spectra in bilayer magnetic films

The anti-Hermitian part of the high-frequency susceptibility tensor components in a bilayer film is calculated by solving the equation of motion for magnetization taking into account damping and using the exchange boundary conditions. The resultant expressions are used for determining the main parameters of the spin-wave resonance spectrum. Comparison of the calculated and experimental results demonstrates the correctness of the proposed method for calculating spectra.