Abstract
Magnetization fluctuation in the transition region is one of the important factors causing transition noise. The fluctuation is closely related to magnetic microstructures such as magnetic clusters, and it is therefore necessary to quantitatively analyze these clusters. This paper proposes an analysis method that can extract two-dimensional features of clusters. The proposed method is based on a genetic algorithm (GA), and investigates the distribution of the magnetic poles that exist at the boundaries of magnetic clusters. By considering the obtained distribution, we estimate the cluster size and confirm the validity of the proposed method.
