Resonance properties of magnetically anisotropic films with various anisotropy dispersion

On the basis of a statistical model of noninteracting blocks, there is carried out an analysis of the specific features of the spectrum of ferromagnetic resonance in polycrystalline metallic magnetic films, which are connected with the presence of cubic crystallographic anisotropy and induced uniaxial magnetic anisotropy, and also with the presence of an angular dispersion of the crystallographic anisotropy. It is shown that the allowance for the angular dispersion of magnetic anisotropy leads to an asymmetry and a broadening of the integrated resonance curve and also to characteristic angular dependences of the resonance field and of the resonance linewidth.