Using the local control theory we derive analytical expressions for magnetic field pulses that steer the magnetization of a monodomain magnetic nanoparticle to a predefined state. Finite-temperature full numerical simulations confirm the analytical results and show that a magnetization switching or freezing is achievable within few precessional periods and that the scheme is exploitable for fast thermal switching.
@article{arxiv.0812.0584,
title = {Local control of ultrafast dynamics in magnetic nanoparticles},
author = {A. Sukhov and J. Berakdar},
journal= {arXiv preprint arXiv:0812.0584},
year = {2015}
}