Figure 5
From: Reduction of phase noise in nanowire spin orbit torque oscillators
Self-oscillatory mode profiles.
Profiles of the self-oscillatory bullet mode in the single-mode regime calculated from Eq. (1) for the straight (a) and tapered (d) nanowire STOs at different bias currents. The height of the yellow shaded area represents the spin current density within the STO active region. (b,e) Time evolution of the amplitude 
and relative phase Δϕ (see Methods) of the magnetization oscillations in the double-bullet regime of self-oscillations. (c,f) Snapshots of the dynamic magnetization profile Re[b] at two values of time.
