Figure 8
(a) P-MOKE microscopy images of the magnetization reversal of squares with a = 25 μm (sample B2) for the 2 → 1 transition and (b) close-up image of one representative square. (c) Schematic cross-section of the intermediate phase showing the effective magnetization, and the magnetization of the Co and Tb subsystems within the matrix (M) and the square (S) in two variants: (2 → 1) with the domain nucleation in the center of the square [consistent with the images of panel (a)], (2 → 1)* with the domain nucleation in the vicinity of the edge of the square (this requires two DWs: one at the edge of the square and another close to its center). The stray fields from magnetic domain structure are schematically presented (c).
