Uni Hamburg Fachbereich Physik
Logo MFM, SPM-Group, Institute of Applied Physics, Hamburg

Investigation of magnetic bit structures

Two MFM images of closely spaced bit tracks on a tape, which is used as mass data storage device. While the read head can only disinguish "1" and "0" along the tracks, MFM is able resolve the fine structure of the magnetic bit structure. Regarding device optimations the area where neighbouring meet (right image) are of particular importance to increase the bit density.