Figure 5

The top view SEM micrographs of the Fe3O4 (a), Zn0.41Fe2.59O4 (b), and Zn0.99Fe2.01O4 (c) ferrite films as well as the cross-sectional SEM image of the Zn0.41Fe2.59O4 ferrite film (d)
The top view SEM micrographs of the Fe3O4 (a), Zn0.41Fe2.59O4 (b), and Zn0.99Fe2.01O4 (c) ferrite films as well as the cross-sectional SEM image of the Zn0.41Fe2.59O4 ferrite film (d)