Substantially two dimensional isotropic magnetic recording mediu

Details Substantially two dimensional isotropic magnetic recording mediu Substantially two dimensional isotropic magnetic recording mediu

1998-09-08

2000-08-29

Kiliman, Leszek

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428336, 428694T, 428694TS, 428900, 427128, 427129, 427130, 427131, 2041922, G11B 566

Patent

active

061105821

ABSTRACT:
A high areal density magnetic recording medium exhibiting high H.sub.c, high SNR, high S* and substantially two dimensionally isotropic magnetic properties is achieved by depositing a NiAl underlayer on a NiP-plated non-magnetic metallic substrate, such as an Al alloy substrate. Embodiments include depositing a Cr layer on the NiAl underlayer. The NiAl underlayer and/or Cr layer can optionally contain an alloying element for inducing a preferred HCP crystallographic structure in the magnetic layer by lattice matching.

REFERENCES:
patent: 5733370 (1998-03-01), Chen
patent: 5879783 (1999-03-01), Chang
patent: 6010795 (2000-01-01), Chen
Lee "NiAl Underlayers . . . ", IEE Transactions on Magnetics vol. 30, No. 6, Nov. 1996.
"NiA1 Underlayers for CoCrTa Magnetic Thin Films", Li-Lien Lee et al., IEEE Transactions of Magnetics, vol. 30, No. 6, Nov. 1994.
"Effects of Cr Intermediate Layers on CoCrPt Thin Film Media on NiA1 Underlayers", Li-Lien Lee, et al., IEEE Transactions on Magnetics, vol. 31, No. 6, Nov. 1995.
"Seed Layer Induced (002) Crystallographic Texture in NiA1 Underlayers", Li-Lien Lee, et al., Journal of Applied Pysics, vol. 79, No. 8, Apr. 15, 1996.
The Control and Characterization of the Crystallographic Texture of Longitudinal Thin Film Recording Media, David E. Laughlin, et al., IEEE Transactions on Megnetics, vol. 32, No. 5, Sep. 1996.
"41.sup.st Annual Conference on Magnetism and Magnetic Materials-Abstracts", Nov. 12-15, 1996.

Affiliated with

Also associated with

Rating

Substantially two dimensional isotropic magnetic recording mediu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Substantially two dimensional isotropic magnetic recording mediu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substantially two dimensional isotropic magnetic recording mediu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1247606