Fig. 2: Dynamics of individual oscillators. | Communications Physics

Fig. 2: Dynamics of individual oscillators.

From: Second harmonic injection locking of coupled spin torque vortex oscillators with an individual phase access

Fig. 2

a, b Power spectral density (PSD) individually measured from two spin torque vortex oscillators (STVO1 and STVO2) with an edge-to-edge distance of 100 nm. a Spectrum obtained for STVO1 as a function of the direct current I1 (the direct current I2 applied to STVO2 is kept at zero). b Spectrum obtained for STVO2 as a function of I2 (I1 is kept at zero). c Time trace obtained for STVO1 at I1 = −10.0 mA. d Time trace obtained for STVO2 at I2 = −5.0 mA. Each time trace is presented after application of a band pass filter between 150 MHz and 400 MHz to include only the gyrotropic oscillation. A perpendicular magnetic field of 2.8 kOe was applied during the measurements.

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