Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1988-03-30

1991-01-22

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of inorganic material

427131, 427132, 428611, 428678, 428900, G11B 2300

Patent

active

049870394

ABSTRACT:
There is disclosed a magnetic recording medium comprising a non-magnetic substrate and a magnetic membrane composed of Co and oxygen formed thereon, which is characterized in that the saturated magnetic flux density of said magnetic layer is in the range of 8,400 G to 12,600 G, the oxygen content of said layer is in the range of 11 to 29 at %, and the residual magnetization in the in-plane direction of the membrane surface, Mr , and the residual magnetization in the perpendicular direction to the membrane surface Mr.perp., have a relation satisfying Mr /Mr.perp.>1 and the C-axis of Co of the magnetic membrane is oriented in a perpendicular direction to the membrane surface.

REFERENCES:
patent: 4707756 (1987-11-01), Futamoto et al.
patent: 4745005 (1988-05-01), Sugita et al.
patent: 4745031 (1988-05-01), Nakayama et al.
patent: 4780354 (1988-10-01), Nakayama et al.
patent: 4816351 (1989-03-01), Takagi et al.

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