DETERMINATION OF OUT-OF-PLANE ORIENTATION IN BARIUM FERRITE MEDIA USING MOSSBAUER-SPECTROSCOPY

The quality of barium ferrite tape as a recording medium is strongly d ependent on its texture. The out-of-plane angle of the direction of ma gnetisation is of particular importance for the recording process due to the angle of the head field at the trailing edge. In this work Fe-5 7 Mossbauer spectroscopy has been used to measure the average out-of-p lane angle of the direction of magnetisation for Co/Ti-doped barium fe rrite samples produced under varying conditions. The Mossbauer data in dicate a significant out-of-plane orientation with differences between the samples which are consistent with texture data obtained from magn etic measurements.