MFM images of the 10ő20 um² staggered cobalt magnetic elements on the uniform cobalt sublayer after magnetization along the long (left) and the short (right) axis of the elements. The elements were produced by the proton irradiation of cobalt oxide film through the photoresist mask. These scans demonstrate different magnetization states and the correlation of the magnetic structure of neighboring elements.

Image courtesy of Maslakov K., RRC “Kurchatov Institute”, Russia