Magnetic head including a reproducing head utilizing a magnetore

Details Magnetic head including a reproducing head utilizing a magnetore Magnetic head including a reproducing head utilizing a magnetore

1994-03-01

1995-12-05

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Head accessory

360113, G11B 511, G11B 539

Patent

active

054734924

ABSTRACT:
A magnetic head includes a reproducing head comprising a leading magnetic shield film, an insulator, a magnetoresistance film, an insulator, and a trailing magnetic shield film formed on a substrate from the substrate to a trailing direction. The leading magnetic shield film is made of a soft magnetic thin film having an atomic ratio composition of the formula: T.sub.(100-x-y) M.sub.x N.sub.y wherein T is Fe, Co, Ni or a mixture thereof, M is B, Al, Si, Ti, V, Cr, Y, Zr, Nb, Mo, Ru, Hf, Ta, W or a mixture thereof, N is nitrogen, 0.1.ltoreq.x.ltoreq.25 and 0.1.ltoreq.y.ltoreq.25 or a soft magnetic thin film consisting essentially of 60 to 80 at % of Fe, 5 to 15 at % of Al, 10 to 25 at % of Si, and 0.1 to 20 at % of N. The magnetic head having such a shielded MR head is more durable and increased in productivity and yield.

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