Dynamic magnetic hysteresis in single-domain particles with uniaxial anisotropy

摘要: On the basis of Brown’s kinetic equation a consistent study regimes cyclic magnetization reversal single-domain particles with uniaxial anisotropy is performed. The applied field harmonic and linearly polarized, its amplitude equals maximal coercive force Stoner-Wohlfarth particle. dynamic magnetic hysteresis loops are obtained for particle oriented ensemble, whose easy-magnetization axis tilted to direction under an arbitrary angle. It shown that regime often termed as quasistatic able describe behavior nanoparticle only in quite limited material external parameter range. developed approach has at least two major merits: it enables one consider temperature-frequency domains inaccessible aid approximate methods, provides tool test accuracy latter.