Figure 5: Electronic characterization of the auto-oscillation linewidth.
From: Synchronization of spin Hall nano-oscillators to external microwave signals
Spectra of SHNO auto-oscillations obtained for the free-running oscillation without external microwave signal (open symbols) and oscillation synchronized with the external microwave signal (solid symbols). Inset shows the synchronized spectrum on a finer frequency scale. δf denotes detuning from fMW/2. Curves show the result of the fitting of the experimental data by the Lorentzian function for the free-running spectrum, and Gaussian for the synchronized spectrum.
