MAGNETIC-RELUCTANCE REPRODUCING HEAD WITH TWO FERROMAGNETIC FILMS BOUND TO EACH OTHER IN NONPARARREL

摘要

PROBLEM TO BE SOLVED: To solve the problem that a conventional hard bias structure can not provide a spin valve-type magnetic head which is high in reproductive outputting and stable in a narrow track of <=0.3μm. SOLUTION: The magnetic head which is high in outputting and excellent in stability is obtained by excessively setting the amount of magnetization of a ferromagnetic fixed layer on the anti-ferromagnetic side to that on the side of nonmagnetic intermediate layer, and a magnetic recording-and- reproducing device which is high in outputting and makes a high-density recording possible even in narrow gaps is obtained.