Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2007-02-27
2007-02-27
Evans, Jefferson (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
10882322
ABSTRACT:
A magnetoresistanee effect element comprises a free layer composed of a ferromagnetic layer, a pinned layer composed of a ferromagnetic layer, and a layer disposed between the free layer and the pinned layer and including at least one nano-contact portion disposed between the free layer and the pinned layer. The nano-contact portion has a dimension, including at least one of a length in the layer lamination direction and a length in a direction normal to the layer lamination direction, being not more than Fermi length. The nano-contact portion is provided, in an inside portion thereof, with a magnetic wall composed of either one of Bloch magnetic wall, Neel magnetic wall or a combination wall thereof.
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Sato Isamu
Sbiaa Rachid
Evans Jefferson
TDK Corporation
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