Va. Ignatchenko et al., SPIN-WAVES SPECTRUM AND DAMPING IN QUASI-PERIODIC MULTILAYERS, Journal of magnetism and magnetic materials, 140, 1995, pp. 1947-1948
Spectrum and damping of spin waves are studied theoretically for the m
odel of periodic multilayer structure with randomly modulated period.
It is shown that the energy gap in the spectrum, which is characterist
ic for periodical structures, transforms into an inflexion of the disp
ersion curve with increasing random modulation. The results are compar
ed with spin-wave resonance experimental data.