Precession of the Magnetization Equilibrium Position Under Field Modulation Conditions

The possibility of excitation of precession of the magnetization equilibrium position under conditions of periodic modulation of the submagnetizing field excluding the interfering effect of the domain structure is considered. It is established that for the realization of the precession of the equilibrium position the duration of the period of the alternating field should be such that the domain structure has not had time to develop, and the precession of the equilibrium position has acquired a sufficient amplitude. It is shown that under these conditions the magnetization fluctuations are alternating periods of simple precession and equilibrium precession. A precession portrait, which has the form of two concentric rings, and a magnetization oscillation spectrum containing high-frequency and low-frequency lines are constructed. Possible practical applications of the described phenomena are given.