Figure 2
From: Reduction of phase noise in nanowire spin orbit torque oscillators

Microwave emission spectra.
Normalized power spectra generated by the straight (a,c) and tapered (b,d) nanowire STOs at two bias current values.
From: Reduction of phase noise in nanowire spin orbit torque oscillators

Microwave emission spectra.
Normalized power spectra generated by the straight (a,c) and tapered (b,d) nanowire STOs at two bias current values.