Non-magnetic substrate material and slider assembly for use in flying-type magnetic head

摘要

A non-magnetic substrate material Fe2O3 as a major component and 0.1-5 weight %, based on the total amount of the material, of at least one of Nd2O3 and Gd2O3. By adding Nd2O3 and/or Gd2O3, the maximum size of the grains in the material is regulated to 5 mu m or less. This improves the CSS characteristics of a flying-type magnetic head made thereof and makes the flying height low and constant.