Inventors:
Andrew Kent - New York NY, US
Enrique Gonzalez Garcia - New York NY, US
Barbaros Özyilmaz - Brooklyn NY, US
Assignee:
New York University - New York NY
International Classification:
G11C011/14
US Classification:
365171, 365158, 365173, 3652255, 365 97, 365 66, 257421
Abstract:
The present invention generally relates to the field of magnetic devices for memory cells that can serve as non-volatile memory. More specifically, the present invention describes a high speed and low power method by which a spin polarized electrical current can be used to control and switch the magnetization direction of a magnetic region in such a device. The magnetic device comprises a pinned magnetic layer with a fixed magnetization direction, a free magnetic layer with a free magnetization direction, and a read-out magnetic layer with a fixed magnetization direction. The pinned magnetic layer and the free magnetic layer are separated by a non-magnetic layer, and the free magnetic layer and the read-out magnetic layer are separated by another non-magnetic layer. The magnetization directions of the pinned and free layers generally do not point along the same axis. The non-magnetic layers minimize the magnetic interaction between the magnetic layers.