Effect of the Direction of MFM Tip's Magnetization on MFM Images and Analysis of the In-Plane Magnetic FeId for Longitudnal Magnetic Recording Media

Abstract

The effect of the direction of MFM tip's magnetization on MFM images and the analysis of the in-plane magnetic field for longitudinal magnetic recording media were examined. The in-plane magnetic stray field was effectively detected by magnetizing the MFM tip to the in-plane direction. The MFM contrast of magnetic transition region was drasti- cally changed and a zigzag transition was clearly observed by changing the angle between the magnetized direction of the MFM tip and the track direction of the media. The magnetic fine structure of the media is also discussed.