Effect of interparticle magnetostatic interaction on the magnetization reversal in neodymium-iron-boron alloys

A program for modeling the hysteretic behavior of permanent magnets based on Nd₂Fe₁₄B alloys and visualizing their domain structure was developed on the basis of a phenomenological approach to the elementary event of magnetization reversal of highly anisotropic uniaxial ferromagnets. It is shown that the magnetostatic interaction between microvolumes of the material leads to cooperative magnetization reversal of microvolumes with the formation of reverse-magnetization channels and interaction domains.