The 90° pulse magnetization curve of ferrite-garnet films with planar anisotropy

Abstract The process of 90° pulse magnetization in ferrite-garnet films with planar anisotropy has been investigated. Two regions separated by a distinctly defined break point at a magnetizing field amplitude ≅ 15 – 18 Oe have been revealed on the pulse magnetization curve. Analysis of the magnetization signals has shown that for the description of dynamic behaviour of the films a consideration of the forces caused only by the uniaxial and biaxial anisotropies is sufficient. The values of the break field have been calculated. The results of the calculations are in the good agreement with the experimental data.