Write head with high thermal stability material

摘要

A combined magnetic head (40) for a rotating magnetic media disk drive (30) wherein a write head portion (50) is structurally integral with a read head portion (52). During manufacture the read head portion (52) is exposed to high temperature in a magnetic field perpendicular to an air bearing surface (46) of the combined magnetic head (40). In order to prevent unwanted realignment of the P1 pole (78) and P2 pole (80) of the write head portion (50) the P1 pole (78) and (P2) pole are constructed from a class of materials known as nanocrystalline ferromagnetic oxides, which can withstand temperatures well in excess of the incident manufacturing conditions without succumbing to the unwanted effects.