Figure 3
From: Injection locking at 2f of spin torque oscillators under influence of thermal noise
PSD map of the output power at IRF = 1.12 mA (a). Linewidth vs ε = IRF/IDC (b) and amplitude and phase noise from the experiment (c) for the non-locked state, (continuous line, ε = 0) and locked state (dashed line, ε = 0.7). Notice that the injection locking mechanism is efficient to reduce the noise level (green arrows).
