| http://www.w3.org/ns/prov#value | - In a reproducing head of the magnetic disk apparatus shown in FIG. 1, a lower gap insulating layer 2 formed of a nonmagnetic insulating material such as Al2O3, AlN or SiO2 is provided on a lower shield layer 1, which is a magnetic film formed of, for example, a soft magnetic material such as permalloy, a Co-based amorphous material, or Fe-based fine particles.
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