We derive the amplitude expansion for a phase-field-crystal (APFC) model that captures the basic physics of magneto-structural interactions. The symmetry breaking due to magnetization is demonstrated, and the characterization of the magnetic anisotropy for a bcc crystal is provided. This model enables a convenient coarse-grained description of crystalline structures, in particular when considering the features of the APFC model combined with numerical methods featuring inhomogeneous spatial resolution. This is shown by addressing the shrinkage of a spherical grain within a matrix, chosen as a prototypical system to demonstrate the influence of different magnetizations. These simulations serve as a proof of concept for the modeling of manipulation of dislocation networks and microstructures in ferromagnetic materials within the APFC model.
|Number of pages||15|
|Journal||Modelling and simulation in materials science and engineering|
|Publication status||Published - Sept 2022|
Research priority areas of TU Dresden
DFG Classification of Subject Areas according to Review Boards
ASJC Scopus subject areas
- APFC modeling, magneto-structural properties, multiscale adaptive finite elements, BOUNDARY ENERGY, MOTION, SOLUTE SEGREGATION, FIELD, DISLOCATION LINE, VACANCY FORMATION ENERGIES, SIMULATION