A non isothermal phase-field model for the ferromagnetic transition
Other Condensed Matter
2011-08-02 v1
Abstract
We propose a model for non isothermal ferromagnetic phase transition based on a phase field approach, in which the phase parameter is related but not identified with the magnetization. The magnetization is split in a paramagnetic and in a ferromagnetic contribution, dependent on a scalar phase parameter and identically null above the Curie temperature. The dynamics of the magnetization below the Curie temperature is governed by the order parameter evolution equation and by a Landau-Lifshitz type equation for the magnetization vector. In the simple situation of a uniaxial magnet it is shown how the order parameter dynamics reproduces the hysteresis effect of the magnetization.
Cite
@article{arxiv.1108.0378,
title = {A non isothermal phase-field model for the ferromagnetic transition},
author = {V. Berti and D. Grandi},
journal= {arXiv preprint arXiv:1108.0378},
year = {2011}
}
Comments
11 pages article with 3 figures