Magnetic recording medium with grain size control layer

Details Magnetic recording medium with grain size control layer Magnetic recording medium with grain size control layer

1998-09-24

2000-10-17

Kiliman, Leszek

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428336, 428694TS, 428900, G11B 566

Patent

active

061328634

ABSTRACT:
Simultaneous crystallographic orientation and grain size refinement of the magnetic layer are achieved by depositing a grain size control layer on a underlayer. Embodiments include depositing a CrV grain size control layer on a Cr underlayer at thickness ratio of underlayer to grain size control layer of about 0.5 to about 2. Magnetic layers having a grain size of about 100 .ANG. to about 250 .ANG., e.g. at 180 .ANG. to about 220 .ANG., are achieved.

REFERENCES:
patent: 4833020 (1989-05-01), Shiroishi
patent: 5456978 (1995-10-01), Lal
patent: 5879783 (1999-03-01), Chang
patent: 5968679 (1999-10-01), Kobayashi
patent: 6045931 (2000-04-01), Song

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