“…On the other hand, a more complex structure inside the large magnetic domains is visible, in contrast, for example, to the FeNi (40 nm) × 4 multilayered sample (Figure 5). Most likely, this is a consequence of the complex magnetic structure through the thickness of the whole sample [37]. Additional confirmation of this assumption is provided by Kerr images obtained by reversing the magnetization of the sample along the hard magnetization axis (Figure 7b,d).…”