Dynamic magnetic information storage or retrieval – Head – Hall effect
Patent
1994-02-18
1997-08-12
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Head
Hall effect
G11B 5127
Patent
active
056571909
ABSTRACT:
For preventing output drop with time of a MR magnetic head or similar apparatus, a magnetic field sensor in the form of a giant magnetoresistive element of the induced ferrimagnetic or spin-valve type in which antiparallelism of magnetization is induced between the magnetic layers by external magnetization. A magnetic field detecting apparatus including a magnetic field sensor using a giant magnetoresistive multilayer film of the induced ferrimagnetic type or the like includes a magnetic field generating means such as a permanent magnet. The magnetic field sensor is moved to the proximity of the magnetic field generating means and placed within the magnetic field when the magnetic field sensor is out of use or its detection sensitivity drops.
REFERENCES:
patent: 4949039 (1990-08-01), Grunberg et al.
patent: 5159513 (1992-10-01), Dieny et al.
patent: 5243316 (1993-09-01), Sakakima et al.
patent: 5442508 (1995-08-01), Smith
patent: 5447781 (1995-09-01), Kano et al.
patent: 5452163 (1995-09-01), Coffey et al.
Physical Review B, vol. 43, No. 1, Jan. 1, 1991, "Giant Magnetoresistance In Soft Ferromagnetic Multilayers" B. Dieny, et al.
Araki Satoru
Honda Yuuji
Sato Yuuichi
Shinoura Osamu
Davis David D.
Levy Stuart S.
TDK Corporation
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