Ferromagnetic tunnel magnetoresistive devices and magnetic head

Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head

Reexamination Certificate

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Reexamination Certificate

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07099126

ABSTRACT:
The present invention provides a ferromagnetic tunnel magnetoresistive film which is associated with a high output and whose magnetoresistive ratio is less dependent on a bias voltage. In a three-terminal ferromagnetic tunnel magnetoresistive element, a decrease in an output is suppressed by a bias voltage V1applied to one of the tunnel junctions. By employing half-metallic ferromagnets11and12in the element, the output can be enhanced and the dependency on the applied bias voltage can be reduced.

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patent: 6819530 (2004-11-01), Gill
patent: 6934133 (2005-08-01), Hayakawa et al.
patent: 2003/0214762 (2003-11-01), Sharma et al.
patent: 2000332317 (2000-11-01), None

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