Device comprising a first and a second ferromagnetic layer separated by a non-magnetic spacer layer
AssigneeU.S. Philips Corporation
InventorsKars-Michiel Hubert H. Lenssen, Hans Willem W. Van Kesteren
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Abstract
A sensor or a memory element comprises a fixed or free ferromagnetic layer. To increase the ease of writting the free layer (for memories) or the fixed layer (for sensors) the layer to be written or switched comprises multilayer configuration comprising two ferromagnetic sublayers separated by a non-magnetic spacer layer, the two ferromagnetic sublayers being magnetically coupled in such manner that their magnetization directions are anti-parallel and the device comprises means for directing a in-plane switching or re-setting current through the multilayered configuration, the current direction being transverse to the magnetization directions of the magnetically coupled sub-layers.
Claims7
A device having a first and a second ferromagnetic layer separated by a non-magnetic spacer layer whereby forming a multilayer configuration, the two ferromagnetic layers being magnetically coupled in such manner that a magnetization direction of the first ferromagnetic layer is antiparallel to a magnetization direction of the second ferromagnetic layer and the device comprises means for directing a in-plane switching or resetting current through the multilayered configuration.
Dependencies are inferred from the claim text.