Figure 4
From: Scaling up electrically synchronized spin torque oscillator networks
(a) Time evolution of the phase difference with attenuations of 0 dB (blue), −10 dB (green), and −16 dB (red). The inset is enlarging view within the time range of 20 μs. Number of phase slips increases with increasing attenuation. Note that the results represent the case that phase difference decreases with time. There is also however a case where phase difference increases with time. The sign of time evolution depends on the detuning of STO natural frequencies. (b) Dependence of phase-slip time on attenuation. The red circles are experimentally measured values, whereas the dashed blue line was obtained from theoretically.
