Multi-layered ferromagnetic film and method of manufacturing the

Details Multi-layered ferromagnetic film and method of manufacturing the Multi-layered ferromagnetic film and method of manufacturing the

1986-10-14

1987-10-06

Andrews, Melvyn J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428682, 428928, 2041922, 427132, G11B 566, C23C 1414

Patent

active

046982736

ABSTRACT:
The film is composed of an alternate lamination of unit iron layers and unit layers of ferromagnetic iron compound such as Fe.sub.3 Al, Fe.sub.3 Si, Fe.sub.3 Ge and Fe.sub.3 Ga. The thickness of the both unit layers is less than 70 .ANG.. The film has a high saturation magnetization more than 230 emu/g and a high thermal stability so that the film is particularly applicable to a magnetic head core.

REFERENCES:
patent: 2920381 (1960-01-01), Bozorth et al.
patent: 3375091 (1968-03-01), Feldkeller
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4610935 (1986-09-01), Kumasaka et al.
C. L. Fu, J. Freeman, and T. Oguchi, "Prediction of Strongly Enhanced Two-Dimensional Ferromagnetic Moments on Metallic Overlayers, Interfaces, and Superlattices", (Physical Review Letters, vol. 54, No. 25, pp. 2700-2703).
Nobuo Kawamiya, Kengo Adachi and Yoji Nakamura, "Magnetic Properties and Mossbauer Investigation of Fe-Ga Alloys, (Journal of the Physical Society of Japan, vol. 33, No. 5, Nov. 1972, pp. 1318-1327).

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