High coercivity longitudinal recording media and method for its

Details High coercivity longitudinal recording media and method for its High coercivity longitudinal recording media and method for its

1998-05-14

2000-10-31

Kiliman, Leszek

Coating processes

Magnetic base or coating

Magnetic coating

427129, 427130, 2041972, 428336, 428694TM, 428900, G11B 566

Patent

active

061399078

ABSTRACT:
A high coercivity longitudinal recording media comprising FePt or similar thin films that are vacuum deposited by RF and DC sputtering. The as-deposited multilayered films are subjected to vacuum annealing. Due to the formation of the ordered phases of FePt or the like, which have very high crystal anisotropy, the annealed FePt films have large coercivity and fine grain size, suitable for use as ultra-high density magnetic recording media.

REFERENCES:
patent: 4587176 (1986-05-01), Corcie
patent: 5051288 (1991-09-01), Amert
patent: 5565266 (1996-10-01), Hatwar
patent: 5604030 (1997-02-01), Yamoue

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