Phase locking of vortex based spin transfer oscillators to a microwave current

Abstract

Phase locking experiments on vortex based spin transfer oscillators with an external microwave current are performed. We present clear evidence of phase locking, frequency pulling, as well as fractional synchronization in this system, with a minimum peak linewidth of only 3 kHz in the locked state. We find that locking ranges of the order of 1/3 of the oscillator frequency are easily achievable because of the large tunability $\partial f/\partial I_{dc}$ observed in our vortex based systems. Such large locking ranges allow us to demonstrate the simultaneous phase locking of two independent oscillators connected in series with the external source.

References in corpus (3)

• Current-driven vortex oscillations in metallic nanocontacts
• Coupling efficiency for phase locking of a spin transfer oscillator to a microwave current
• Impact of the electrical connection of N Spin Transfer Oscillators on their synchronization : an analytical study

Cited by in corpus (23)

• Spin transfer nano-oscillators
• Parallel pumping for magnon spintronics: Amplification and manipulation of magnon spin currents on the micron-scale
• Identification and selection rules of the spin-wave eigen-modes in a normally magnetized nano-pillar
• Phase locking dynamics of dipolarly coupled vortex-based spin transfer oscillators
• Core-Core Dynamics in Spin Vortex Pairs
• Perfect and robust phase-locking of a spin transfer vortex nano-oscillator to an external microwave source
• Evaluating spintronics-compatible implementations of Ising machines
• Parallel pumping of magnetic vortex gyrations in spin-torque nano-oscillators
• Direct observation of magnetization dynamics generated by nano-contact spin-torque vortex oscillators
• Dynamical properties of three terminal magnetic tunnel junctions: spintronics meets spin-orbitronics
• Field-Free Synthetic-Ferromagnet Spin Torque Oscillator
• Single spin-torque vortex oscillator using combined bottom-up approach and e-beam lithography
• Frequency enhancement and power tunability in tilted polarizer spin-torque nano oscillator
• Synchronization of spin-transfer torque oscillators by spin pumping, inverse spin Hall, and spin Hall effects
• Integer, fractional and side band injection locking of spintronic feedback nano-oscillator to microwave signal
• Super-harmonic injection locking of nano-contact spin-torque vortex oscillators
• Enhancing the injection locking range of spin torque oscillators through mutual coupling
• Time-domain stability of parametric synchronization in a spin-torque nano-oscillator based on a magnetic tunnel junction
• Injection locking at zero field in two free layer spin-valves
• Synchronization and chaos in spin-transfer-torque nano-oscillators coupled via a high speed Op Amp
• Modulation and phase-locking in nanocontact vortex oscillators
• Injection locking at fractional frequencies of magnetic tunnel junction (MTJ)-based read sensors' ferromagnetic resonance modes
• Efficient Synchronization of Dipolarly Coupled Vortex-Based Spin Transfer Nano-Oscillators