Fig. 4
Mutual synchronization on the first, second, and third Slonczewski modes. Mutual synchronization of MTJ-based STNOs having two NCs with a nominal diameter of 150 nm and center-to-center separation of 300 nm. a Synchronization on the first Slonczewski mode as a function of external magnetic field Hex for a drive current of Idc = −22 mA and an out-of-plane field direction of θext = 75°. Synchronization on b the second Slonczewski mode at Hex = 1.18 T and c the third Slonczewski mode at Hex = 1.45 T, as a function of drive current for θext = 88°. Mutual synchronization on all three Slonczewski SW modes serves as evidence for their propagating nature
