Dynamics of magnetization of a uniaxial nanoparticle in the region of noncollinear ferromagnetic resonance

Resonance dynamics of the magnetic moment a uniaxial ellipsoidal nanoparticle under its biasing along symmetry axis and excitation by transverse high-frequency field is studied with parameters (frequency, bias shape parameter), corresponding to noncollinear orientation equilibrium magnetization external static field. We revealed frequency regions where precession becomes nonlinear at weak alternating dynamic bistability, as well complex spatial attractors chaos are implemented. Keywords: nanoparticle, ferromagnetic resonance, field, nonlinearity, effective anisotropy, regular chaotic precession.