2011/08/01 by Valeria Berti, Berti, V., Diego Grandi +1
Materials Science · Physics and Astronomy · #8A22 #FOS: Physical sciences #Magnetic properties of thin films #Other Condensed Matter (cond-mat.other) #Solidification and crystal growth phenomena #Theoretical and Computational Physics
paper · pdf · doi:10.48550/arxiv.1108.0378
openalex publication_date 2011/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.