Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2005-06-30
2010-12-21
Klimowicz, William J (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
C365S158000
Reexamination Certificate
active
07855860
ABSTRACT:
A magnetoresistance element includes an antiferromagnetic layer, a fixed ferromagnetic layer, a first nonmagnetic layer and a free ferromagnetic layer. The antiferromagnetic layer is formed on the upper surface side of a substrate. The fixed ferromagnetic layer is formed on the antiferromagnetic layer. The first nonmagnetic layer is formed on the fixed ferromagnetic layer. The free ferromagnetic layer is formed on the first nonmagnetic layer. The fixed ferromagnetic layer is provided with an amorphous layer. The amorphous layer contains amorphous material having a composition expressed by a chemical formula of X—Y—N. X is an element selected from Co, Fe and Ni. Y is an element selected from AI, Si, Mg, Ta, Nb, Zr, Hf, W, Mo, Ti and V. N represents nitrogen.
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Klimowicz William J
NEC Corporation
Scully , Scott, Murphy & Presser, P.C.
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