Conjugate gradient methods in micromagnetics
Materials Science
2017-08-08 v1
Abstract
Conjugate gradient methods for energy minimization in micromagnetics are compared. When the step length in the line search is controlled, conjugate gradient techniques are a fast and reliable way to compute the hysteresis properties of permanent magnets. The method is applied to investigate demagnetizing effects in NdFe12 based permanent magnets. The reduction of the coercive field by demagnetizing effects is 1.4 T at 450 K.
Keywords
Cite
@article{arxiv.1701.05810,
title = {Conjugate gradient methods in micromagnetics},
author = {J. Fischbacher and A. Kovacs and H. Oezelt and T. Schrefl and L. Exl and J. Fidler and D. Suess and N. Sakuma and M. Yano and A. Kato and T. Shoji and A. Manabe},
journal= {arXiv preprint arXiv:1701.05810},
year = {2017}
}