Abstract
The amplitude expansion for a magnetic phase‐field‐crystal (magnetic APFC) model enables a convenient coarse‐grained description of crystalline structures under the influence of magnetic fields. Considering higher‐order magnetic coupling terms, the possibility of tuning the magnetic anisotropy in these models is demonstrated. This allows reproducing the easy and hard directions of magnetization. Such a result can be achieved without increasing the computational cost, enabling simulations of the manipulation of dislocation networks and microstructures in ferromagnetic materials. As a demonstration, the simulation of the shrinkage of a spherical grain with the magnetic anisotropy of Fe is reported.
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