Multilayer magnetic medium with soft magnetic interlayer

Details Multilayer magnetic medium with soft magnetic interlayer Multilayer magnetic medium with soft magnetic interlayer

1993-12-16

1998-04-14

Resan, Stevan A.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

428212, 428216, 428336, 428635, 428667, 428678, 428680, 428681, 428694T, 428694TM, 428694TS, 428694TP, 428900, 428408, G11B 566

Patent

active

057389454

ABSTRACT:
A low-noise, thin-film magnetic recording medium, and method of making the same, are disclosed. The medium has a multilayer magnetic-film construction, where the individual magnetic-film layers are isolated by a thin ferromagnetic film. The ferromagnetic layer is effective to reduce the medium noise and increase medium signal-to-noise ratio at least as much as a Cr isolation having the same isolation-layer thickness, but with substantially less reduction in overwrite.

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Hata, H., et al., "Low-noise media using double-layer CoNiCr thin films for longitudinal recording," J. Appl. Phys. 67(9): 4692-4694 (May 1990).
Lambert, S.E., et al., "Reduction of Media Noise In Thin Film Metal Media By Lamination," IEEE Transactions on Magnetics 26(5): 2706-2708 (Sep. 1990).
Sanders, I.L., et al., "Magnetic and Recording Characteristics of Very Thin Metal-Film Media," IEEE Transactions on Magnetics 25(5): 3869-3871 (Sep. 1989).

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