Figure 1
From: Non-volatile artificial synapse based on a vortex nano-oscillator
(a) Top view optical image of the devices after fabrication with an integrated local field line fabricated on top of the MTJ nanopillar. (b) Illustration of the experimental setup used for the initialization and spin diode measurements. (c) Two terminal R-H loop for an MTJ with a diameter of 1.0 µm, explaining the 3-step initialization process. The insets show how each chirality is associated with a different vortex configuration of the in-plane magnetic moments of the free layer, as seen from the bottom of the MTJ.
