Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2005-05-25
2009-02-03
Blouin, Mark (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07486487
ABSTRACT:
A magneto-resistive element employs a CPP structure and includes an antiferromagnetic layer, a pinned magnetization layer, a nonmagnetic intermediate layer and a free magnetization layer that are successively stacked. The pinned magnetization layer includes a first pinned magnetization layer, a nonmagnetic coupling layer and a second pinned magnetization layer that are successively stacked on the antiferromagnetic layer, and the first and second pinned magnetization layers are antiferromagnetically exchange-coupled. One of the first and second pinned magnetization layer is formed by a ferromagnetic layer made of a ferromagnetic material at least including one element or alloy selected from a group consisting of Co, Fe, Ni and alloys thereof, and the other is formed by a resistance control layer made of a conductive ferromagnetic oxide.
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Jogo Arata
Kondo Reiko
Oshima Hirotaka
Shimizu Yutaka
Tanaka Atsushi
Blouin Mark
Fujitsu Limited
Greer Burns & Crain Ltd.
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