A numerical model of single-domain nanoscale iron magnets fabricated using scanning-microscope-assisted chemical vapor deposition is simulated using finite-temperature micromagnetics. A Projective-dynamics method is used to determine the magnetization at the saddle point as a function of temperature. This magnetization is found to decrease linearly as the temperature is raised.
@article{arxiv.cond-mat/0204180,
title = {Determining the Saddle Point in Micromagnetic Models of Magnetization Switching},
author = {Gregory Brown and M. A. Novotny and Per Arne Rikvold},
journal= {arXiv preprint arXiv:cond-mat/0204180},
year = {2007}
}