Wisconsin Alumni Research Foundation

Information Technology
Information Technology
Spin-Orbit Torque Magnetoresistive Random Access Memory With Magnetic Field-Free Current-Induced Perpendicular Magnetization Reversal
WARF: P190333US01

Inventors: Jiamian Hu, Minyi Dai


The Invention
Spin-orbit torque magnetoresistive random-access memory (SOT-MRAM) cells that undergo perpendicular magnetization switching in the absence of an in-plane magnetic field and methods for their operation are provided. The SOT-MRAM cells use cobalt-iron-boron alloys, cobalt-iron alloys, metallic cobalt, and/or metallic iron as the ferromagnetic free layer in a magnetic tunnel junction. By designing the ferromagnetic layer with appropriate lateral dimensions and operating the SOT-MRAM cells with an appropriate charge current density, deterministic perpendicular magnetization switching is achieved without the need to apply an external in-plane bias collinear with the charge current.
Additional Information
For More Information About the Inventors
For current licensing status, please contact Emily Bauer at [javascript protected email address] or 608-960-9842

WARF