Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2005-11-15
2005-11-15
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S690000
Reexamination Certificate
active
06964819
ABSTRACT:
An anti-ferromagnetically coupled (“AFC”) magnetic recording medium with RKKY coupling between spaced-apart magnetic layers comprising a non-magnetic substrate having a surface, and a layer stack atop the substrate surface. The layer stack comprises, in overlying sequence from the substrate surface: a magnetic stabilization layer, a non-magnetic spacer layer, and a main magnetic recording layer the main magnetic recording layer comprises, in overlying sequence from the non-magnetic spacer layer: (i) a top interface layer, (ii) a Cr alloy magnetic layer, and (iii) a top magnetic layer.
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patent: 6602612 (2003-08-01), Abarra et al.
E.N. Inomata et al., Improved thermal stability of synthetic ferrimagnetic media with enhanced exchange coupling strength, Applied Physics Letters, Apr. 15, 2002, pp. 2719-2721, vol. 80 No. 15.
H.J. Richter et al., Simplified analysis of two-layer antiferromagnetically coupled media, Applied Physics Letters, Apr. 8, 2002, pp. 2529-2531, vol. 80, No. 14.
Eric E. Fullerton, et al., Antiferromagnetically coupled magnetic media layers for thermally stable high-density recording, Applied Physics Letters, Dec. 4, 2000, pp. 3806-3808, vol. 77, No. 23.
H. Yamanaka, et al., Enhancement of exchange coupling for antiferromagnetically coupled media, Journal of Applied Physics, May 15, 2002, pp. 8614-8616, vol. 91, No. 10.
E.N. Abarra et al., Longitudinal magnetic recording media with thermal stablization layers, Applied Physics letters, Oct. 16, 2000, pp. 2581-2583, vol. 77, No. 16.
Girt Erol
Munteanu Mariana Rodica
Richter Hans Jürgen
Bernatz Kevin M.
Seagate Technology LLC
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