Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1992-09-04
1995-07-25
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Head
Hall effect
G11B 539
Patent
active
054367778
ABSTRACT:
A magnetoresistive head has a substrate (1) and, on the substrate, a magnetoresistive film (40) for converting a magnetic signal into an electric signal by using magnetoresistance effects and a pair of electrodes (60) for causing a signal detection current to flow through the magnetoresistive film. A pair of first domain wall suppressing layers (30) are arranged at opposite end portions of the magnetoresistive film, respectively, to apply a longitudinal magnetic bias to the magnetoresistive film. A second domain wall suppressing layer (45) is also provided for applying a longitudinal magnetic bias, which is weaker compared with the longitudinal magnetic bias applied by the first domain wall suppressing layers, to the magnetoresistive film (40).
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Ashida Eiji
Fuyama Moriaki
Imagawa Takao
Narishige Shinji
Nishioka Kouichi
Ditmyer Paul J.
Hitachi , Ltd.
Tupper Robert S.
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