CHARACTERISTICS OF NONLINEAR MAGNETOSTATIC SURFACE WAVES

The dynamic nonlinear magnetization of different order induced by microwaves in a ferromagnetic material is derived by using perturbation theory. The characteristics of the nonlinear magnetostatic surface wave with wavevector k, making an arbitrary angle to the bias magnetic field, is analysed rigorously. We conclude that the envelope magnetostatic surface solitons in ferromagnetic films can not be generated in all possible direction of propagation.