Characteristic of Co doping in Fe3O4 ferrite films

In this study, Fe₃O₄ ferrite oxides with half metallic behavior at Fermi level involved different energy gap in majority and minority spin band due to fully high spin polarization and metallic-insulation property was taken to be an insulating matrix. Our composite Co-Fe₃O₄ systems were fabricated using combinatorial co-deposition method onto glass substrates. Magnetic properties were analyzed by means of VSM, indicating out-plane coercivity is higher than in-plane coercivity on account of the formation of CoFe oxides compound which has perpendicular anistropy. In summary, the composite Co-Fe₃O₄ thin film exhibits different conduction behaviors and EM inhibition as Co/Fe ratio varies owing to the peculiar stacking microstructure and intergranule exchange coupling.