Stochastic Resonance in Finely Dispersed Magnetics: a Comparison of Discrete and Continuous Models

摘要: The phenomenon of a stochastic resonance in system single-domain particles with easy-axis magnetic anisotropy is treated theoretically for the thermally activated system. results calculations discrete model based on control equation Kramers transition rates moment vector and continuous numerical solution Fokker–Planck periodic drift term are analyzed. phase shifts between input output signals values signal-to-noise ratio calculated iron superparamagnetic context these two models compared.