Abstract
To increase the recording density of thin-film media, it is necessary to improve the recording performance, by, for instance, reducing the media noise. It is also important to ensure thermal stability. In order to obtain higher thermal stability of recorded magnetization, media with soft magnetic layers have recentry been suggested. In this study, we made media with a very thin soft magnetic film under the magnetic layer, and investigated their recording and reproducing characteristics and thermal stability. The findings were as follows:
· When FeSiAl soft magnetic film is formed under the magnetic layer, it is possible to make media with a high coercive force.
· Making a thin FeSiAl film (a few nm thick) is effective for improving the recording and reproducing characteristics, such as the recording and reproducing resolution and the media noise.
· The thin FeSiAl film formations contribute to a significant improvement in the thermal stability.
