Figure 4: Simulated magnetic structures during the magnetization process of a nanodisk.
From: Symmetry breaking in the formation of magnetic vortex states in a permalloy nanodisk

Typical image series of magnetic structures obtained by the simulation for the magnetization process of a nanodisk. In-plane (left) and out-of-plane (right) magnetic structures at each field (time) step are respectively displayed, which are simulated on the top (a) and the bottom layer (b). In the out-of-plane images, the black and white spots represent the down and up polarizations, respectively.