Perpendicular Magnetization Switching via Current induced Spin-Orbit Torques on Flexible Substrate

Implementation of perpendicularly magnetized thin films and of electrically functional devices on flexible substrates may offer new degree of freedom such as strain effect on the ultrathin magnetic films with a strong spin orbit coupling. Moreover the flexibility has advantages in applications with bendable, stretchable and/or mobile environment. In this talk we present the magnetic characteristics of ultrathin multilayers with a sufficient PMA that were grown on a flexible plastic substrate by dc/rf magnetron sputtering. In addition we fabricate cross-Hall bar devices and demonstrate fully deterministic magnetic reversal of perpendicularly magnetized square dots via in-plane dc and/or pulsed currents. We believe that integration of two emerging technologies promises new spintronic devices that can be utilized in arbitrary surface geometries and be worked in ultra small dimensions.