Iron carbide thin film magnetic recording medium

Details Iron carbide thin film magnetic recording medium Iron carbide thin film magnetic recording medium

1988-05-11

1991-04-09

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428688, 428694, 428900, 20419214, 20419215, 2041922, 427127, 427131, G11B 2300

Patent

active

050063952

ABSTRACT:
A magnetic recording medium essentially composed of a substrate and a ferromagnetic thin film deposited on the surface of the substrate is provided herein. This ferromagnetic film is such as to have a minimum of 400 Oe of coercive force and composed mainly of an iron carbide. According to this construction, the magnetic characteristics are greatly improved.

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J. Sol. State Chem. 54:54.60 (1984), D. Andriamandroso et al., "New Ferromagnetic Materials for Magnetic Recording: The Iron Carbonitrides".
Wireless Research Lab, Matsushita Electric, 5-7-87 K. Fujii et al., "Preparation of FE-C Thin Films by ECR Plasma CVD".
Jap. J. App. Physics 26:L28-L31, (1987), K. Watanabe et al., "Magnetic Fe-C Films Prepared by Getter Sputtering on High Temperature Substrates".

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