Magnetic head with Ru containing soft magnetic alloy in gap

摘要

A magnetic head is disclosed which is formed by magnetic core halves constituted of an oxide magnetic material and soft magnetic thin films, wherein the boundary surfaces between the thin films and the oxide magnetic material runs substantially parallel to the gap surface in the vicinity of the magnetic gap. The soft magnetic thin films are soft magnetic thin films of the Fe-Ga-Si system consisting essentially of Fe, Ga and Si.