Simulation of Magnetization Switching in Nanoparticle Systems
Statistical Mechanics
2015-06-24 v1 Materials Science
Abstract
Magnetization reversal in magnetic nanostructures is investigated numerically over time-scales ranging from fast switching processes on a picosecond scale to thermally activated reversal on a microsecond time-scale. A simulation of the stochastic Landau-Lifshitz equation of motion is used as well as a time quantified Monte Carlo method for the simulation of classical spin systems modeling magnetic Co nanoparticles. For field pulses larger than the Stoner-Wohlfarth limit spin precession effects govern the reversal behavior of the particle while for lower fields a magnetization reversal is only possible when it is assisted by thermal fluctuations.
Cite
@article{arxiv.cond-mat/0203054,
title = {Simulation of Magnetization Switching in Nanoparticle Systems},
author = {D. Hinzke and U. Nowak},
journal= {arXiv preprint arXiv:cond-mat/0203054},
year = {2015}
}
Comments
10 pages, 3 figures