Abstract
Magnetic domain observation technique using 200 kV high voltage SEM was applied on lapped Mn-Zn single crystal ferrites. The surface damaged layer of lapped ferrites was investigated from a magnetic domain structure viewpoint. Surface strain state was found to be closely related to the domain structure. A finer maze domain pattern resulted from high strain state. The maze domain depth can be reduced from the height of spike like domain which was observed on tapar section of lapped surface, and was found to be almost equal to the surface damaged layer depth, evaluated from electron diffraction analysis. Further examination suggests another intermediate domain structure could exist under the maze domain pattern.
