Abstract:
It is suggested to use the phase locking (PL) principle for solving problems of synchronization and coherent power addition for spin-transfer microwave nanooscillators employing the phenomenon of magnetization oscillations in the microwave range excited by a spin-polarized current. The dynamics of a model spin-transfer oscillator with an inertial PL loop is considered. The regions of parameters corresponding to various dynamic regimes (synchronous, quasi- synchronous, beats) have been determined using bifurcation analysis. It is shown that the band of existence of synchronous regimes for a spin-transfer nanooscillator with a PL loop increases as compared to the analogous system synchronized by an external field.
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