Magnetoresistance effect for short and long wavelength recording

Details Magnetoresistance effect for short and long wavelength recording Magnetoresistance effect for short and long wavelength recording

1985-10-30

1988-07-12

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, G11B 5127

Patent

active

047574100

ABSTRACT:
A multi-channel magnetoresistance effect type magnetic head has a short wavelength region magnetic head element and a relatively longer wavelength region magnetic head element. The two head elements are provided on a magnetic substrate with each having a magnetic circuit containing a magnetic gap facing a surface adjacent to and across from a magnetic recording medium. Each magnetic circuit has a discontinuity portion with a bridging magnetoresistance effect sensing element to magnetically connect the discontinuity portion. The longer wavelength magnetic head discontinuity portion is spaced at a greater distance from the adjacent surface than is the discontinuity portion of the shorter wavelength magnetic head element.

REFERENCES:
patent: 3969769 (1976-07-01), Gorter et al.
patent: 4488194 (1984-12-01), Michel

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