Monte Carlo study of the thermally activated magnetisation reversal in a single nanoparticle

Abstract We investigate the thermal activated magnetisation reversal in a single ferromagnetic nanoparticle with uniaxial anisotropy using Monte Carlo simulations. Our aim is to reproduce the magnetisation reversal within the framework of the Neel–Brown model and to check the approximated expression of the mean switching field variation versus temperature and field sweeping rate.