Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1992-06-05
1994-04-26
Bertsch, Richard A.
Dynamic magnetic information storage or retrieval
Head
Hall effect
324252, 338 32R, G11B 5127
Patent
active
053072260
ABSTRACT:
A magnetoresistive transducer includes at least one magnetoresistive element having a transverse easy axis. The use of a transverse easy axis prevents magnetic domains from forming in the magnetoresistive elements and results in a noise-free device. Various techniques for producing a transverse easy axis include the use of stress, and a magneto strictive material, during the formation of the element to orient the anisotropy of the element transverse to orient the anisotropy of the element transverse to the element, formation of the element in the presence of a magnetic field, high temperature anneal of the element, or any other method of forming the element with a prebiased state.
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R. Suyana et al., "Thin Film MR Head for High Density Rigid Disk Drive", Nov. 1988, IEEE Trans. Mag., vol. 24, No. 6, pp. 2612-2614.
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Anthony Thomas C.
Brug James A.
Hesterman Victor W.
Naberhuis Steven
Basichas Alfred
Bertsch Richard A.
Hewlett--Packard Company
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