Thin film head having negative magnetostriction

Details Thin film head having negative magnetostriction Thin film head having negative magnetostriction

1979-01-29

1980-12-30

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, G11B 512, G11B 530

Patent

active

042427100

ABSTRACT:
A thin film inductive head is formed with nickel-iron binary alloy or nickel-iron-X ternary alloy pole pieces characterized by negative magnetostriction having a saturation magnetostriction coefficient in the range of -1.times.10.sup.-6 to -5.times.10.sup.-6.

REFERENCES:
patent: 3549428 (1970-12-01), Lommel
patent: 3639699 (1972-02-01), Tiemann
patent: 3774134 (1973-11-01), Kardashian et al.
patent: 3781476 (1973-12-01), Hanazono et al.
patent: 3961299 (1976-06-01), Lazzari et al.
patent: 4044394 (1977-08-01), Hanazono et al.
Physical Review, vol. 70, Nos. 11-12, Dec. 1 & 15, 1946, pp. 923-932, "Magnetoresistive and Domain Theory of Iron-Nickel Alloys", by Bozorth.

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