Apparatus for providing uniaxial anisotropy in a magnetic record

Details Apparatus for providing uniaxial anisotropy in a magnetic record Apparatus for providing uniaxial anisotropy in a magnetic record

1992-03-02

1993-07-13

Jones, W. Gary

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Electrostatic and/or electromagnetic attraction or...

H01F 100

Patent

active

052269663

ABSTRACT:
An apparatus for providing radial uniaxial anisotropy in the soft magnetic layer of a magnetic recording disk is disclosed. While the soft magnetic layer is being deposited on the recording disk, the magnetic field. The alternating perpendicular magnetic field causes eddy currents to flow in the disk, in a circumferential direction. The eddy currents, in turn cause a magnetic field in a radial direction, thereby resulting in the desired radial uniaxial anisotropy.

REFERENCES:
patent: 4745001 (1988-05-01), Mayoshi et al.

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