Enhanced synchronization in an array of spin torque nano oscillators in the presence of oscillating external magnetic field

Abstract

We demonstrate that the synchronization of an array of electrically coupled spin torque nano-oscillators (STNO) modelled by Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equation can be enhanced appreciably in the presence of a common external microwave magnetic field. The applied microwave magnetic field stabilizes and enhances the regions of synchronization in the parameter space of our analysis, where the oscillators are exhibiting synchronized oscillations thereby emitting improved microwave power. To characterize the synchronized oscillations we have calculated the locking range in the domain of external source frequency.

arXiv commentAccepted for publication in Europhysics Letters (EPL)

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Cited by in corpus (5)

• Frequency enhancement and power tunability in tilted polarizer spin-torque nano oscillator
• Phase locking of spin transfer nano-oscillators using common microwave sources
• Influence of field-like torque in synchronization of spin torque oscillators
• Synchrony breakdown and noise-induced oscillation death in ensembles of serially connected spin-torque oscillators
• Large Amplitude Spin-Hall Oscillations due to Field-like Torque