A study of magnetic domain distribution in ferrite by magnetic force microscopy

In this study, vibration sample measurement (VSM) and magnetic force microscopy (MFM) have been used to observe the magnetic behavior and identify the magnetic domain distribution of NiZn ferrite, which was synthesized via chemical route and spray deposition method. Cases considered in the present study involve the types of NZF1 and NZF2 NiZn ferrite. VSM results show that the films with different deposition rate have the saturation magnetization from 200 to 900 emu/cm³, and the resistance of the film is about 1 Mohm. The ferromagnetic resonance frequency is 1 GHz approximately. MFM results show that images were also discussed the domain wall motion between the particle of NiZn ferrite, which generated the different magnetic moment direction. Therefore, MFM could obtain the relationship results between the qualitative magnetic domain structure distribution and surface morphology of two types of NiZn ferrite.