FERROMAGNETIC TUNNEL TYPE MAGNETO-RESISTANCE EFFECT HEAD HAVING SMALL BIAS DEPENDENCY OF MAGNETIC RESISTANCE RATIO

摘要

PROBLEM TO BE SOLVED: To provide a ferromagnetic tunnel type magneto-resistance effect head having small bias dependency of the magnetic resistance ratio and also high output power. SOLUTION: The ferromagnetic tunnel type magneto-resistance effect head having smaller bias dependency of the magnetic resistance ratio as compared with the conventional ferromagnetic tunnel type magneto-resistance effect element and also having the higher output power is obtained by placing an antiferromagnetic layer 13 adjacent to a half metal ferromagnetic layer 12.