Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Patent
1985-02-15
1987-06-02
Robinson, Ellis P.
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
365122, 428216, 428336, 428693, 428900, 428 65, G11B 564
Patent
active
046703160
ABSTRACT:
Amorphous alloys of two materials having antiferromagnetically-coupled magnetization sublattices, and capable of deposition as a thin film supporting small stable domains for thermo-magnetic recording. The thin-film material is an alloy of at least one rare-earth element and a transistion-metal element. A stable domain of a few microns diameter, allowing highest density of information recording, is achieved by providing the lowest possible wall energy to the domain, with a resulting low anisotropy.
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"Growth Induced Anisotropy in Sputtered GdCo Films", Esho et al., AIP Conf Proc., 34, 331-333 (1976).
"Different Origin of the Perpendicular Anisotropy in Amorphous Gd-Fe from Gd-Co Films", Katayama et al., IEEE Trans. Mag., (MAG 13) No. 5, pp. 1603-1605 (Sep. 1977).
Davis Jr. James C.
General Electric Company
Krauss Geoffrey H.
Robinson Ellis P.
Snyder Marvin
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