Magnetic recording medium and non-magnetic alloy film

Details Magnetic recording medium and non-magnetic alloy film Magnetic recording medium and non-magnetic alloy film

1998-06-25

2000-07-18

Pianalto, Bernard

Stock material or miscellaneous articles

All metal or with adjacent metals

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

427131, 427132, 428336, 428651, 428667, 428678, 428680, 428694TS, 428900, 428928, G11B 566, H01F 1002

Patent

active

060904968

ABSTRACT:
A magnetic recording medium having sufficiently low noise and high coercive force suitable for use with a MR head. The magnetic recording medium comprises a non-magnetic substrate 1, a non-magnetic underlayer 2, a magnetic layer 3 and a protective layer 4. The magnetic layer comprises a Co alloy and the non-magnetic underlayer comprises a first underlayer 21 comprising an Al--Co--Ni alloy and a second underlayer 22 comprising Cr or a Cr alloy laminated on the first underlayer.

REFERENCES:
patent: 4642145 (1987-02-01), Masumoto et al.

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