Static information storage and retrieval – Systems using particular element – Magnetic thin film
Patent
1993-02-23
1994-08-30
LaRoche, Eugene R.
Static information storage and retrieval
Systems using particular element
Magnetic thin film
365158, 360113, G11C 1115
Patent
active
053434226
ABSTRACT:
A nonvolatile magnetoresistive (MR) storage device comprising a plurality of MR storage elements, each comprising a substrate and a multilayered structure including two thin film layers of ferromagnetic material separated by a thin layer of nonmagnetic metallic conducting material. The magnetization easy axis of both ferromagnetic layers in each storage element is oriented substantially lengthwise of the storage elements and substantially parallel to the direction of an applied sense current. The magnetization direction of one of the ferromagnetic layers is fixed in a direction substantially lengthwise of the storage elements, and the magnetization direction of the other layer is free to switch between two digital states in which the magnetization is substantially parallel or substantially antiparallel to the magnetization direction in the one layer.
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Kung Kenneth T.
Tang Denny D.
Wang Po-Kang
International Business Machines - Corporation
LaRoche Eugene R.
Mai Son
Otto, Jr. Henry E.
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