title: Nonlinear magnetization dynamics under circularly polarized field.
abstract: Exact analytical results are presented for the nonlinear large motion of the magnetization vector in a body with uniaxial symmetry subject to a circularly polarized field. The absence of chaos, the existence of pure time-harmonic magnetization modes with no generation of higher-order harmonics, and the existence of quasiperiodic magnetization modes with spontaneous breaking of the rotational symmetry are proven. Application to ferromagnetic resonance and connection with the Stoner-Wohlfarth model are discussed.
authors.affiliation: Istituto Elettrontecnico Nazioale Galileo Ferraris, Torino, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Bertotti
authors.forename: C
authors.initials: C
authors.lastname: Serpico
authors.forename: I D
authors.initials: ID
authors.lastname: Mayergoyz