Time-dependent fields and anisotropy dominated magnetic media
arXiv:cond-mat/0703272 · doi:10.1063/1.2907504
Abstract
We use a single dipole approximation to analyze the behavior of anisotropy-dominated magnetic nanoparticles subjected to an external r.f. field. We identify the steady state oscillations and analyze their stability. We also analyze the case when the external r.f. field has a time-dependent frequency which insures the most effective switching of the magnetization.