Nonlinear oscillations of magnetization accompanying pulsed 90 degrees-magnetization of garnet ferrite films with easy-plane anisotropy

摘要

Nonlinear oscillations of magnetization (with a fundamental harmonic frequency of approximate to 0.5 GHz) emerging during 90 degrees-pulsed magnetization of garnet ferrite films with easy-plane anisotropy are studied. Analysis of longitudinal and transverse magnetization signals and of the magnetization vector hodograph plotted on their basis shows that the weak dependence of the oscillation intensity on duration t(f) of the magnetizing magnetic field pulse (upon its variation from 0.4 to 6-8 ns), which is typical of these films, can be explained by the presence of biaxial anisotropy in the plane of actual films.