Magnetic properties and microstructures of dense branching morphology observed in Bi/Al/Mn/SiO multilayers

The microstructural and magnetic characteristics of Bi/Al/Mn/SiO multilayered structures were investigated using magnetic measurements. A new type of domain structure which was characterized by increasing ramified branches and conspicuous circular envelopes was reported. The results showed that these branches were associated with the magnetization orientations of the films.