Dynamic magnetic information storage or retrieval – Head – Core
Patent
1991-08-14
1993-11-23
Hannaher, Constantine
Dynamic magnetic information storage or retrieval
Head
Core
427131, 427599, 428693, C23C 3000, C21D 104, G11B 5147, G11B 511
Patent
active
052649814
ABSTRACT:
A soft magnetic film includes a laminated structure having an alternating plurality of first magnetic and second magnetic film. The first magnetic films is of a predetermined thickness range and is made of a magnetic alloy of nickel, iron and nitrogen with the nitrogen present from greater than zero to 20 atomic percent. The second magnetic film is of a predetermined thickness range and is made of a magnetic alloy of iron and nitrogen with the nitrogen present from greater than zero to about 20 atomic percent. The films can be annealed in an applied magnetic field. The multilayer films have application as pole pieces and shields in magnetic heads. The magnetic heads are for use in dynamic storage systems including disk and tape media.
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Campbell Richard T.
Lo Jyh-Shuey J.
Hannaher Constantine
International Business Machines - Corporation
Murray Leslie G.
Schmid, Jr. Otto
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