Controlling the synchronization properties of two dipolarly coupled vortex based spin-torque nano-oscillators by the intermediate of a third one
arXiv:1701.09101 · doi:10.1063/1.4962014
Abstract
In this paper, we propose to control the strength of phase-locking between two dipolarly coupled vortex based spin-torque nano-oscillators by placing an intermediate oscillator between them. We show through micromagnetic simulations that the strength of phase-locking can be largely tuned by a slight variation of current in the intermediate oscillator. We develop simplified numerical simulations based on analytical expressions of the vortex core trajectories that will be useful for investigating large arrays of densely packed spin-torque oscillators interacting through their stray fields.
4 pages, 4 figures
References in corpus (9)
- The design and verification of Mumax3
- Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
- Direct-Current Induced Dynamics in Co90Fe10/Ni80Fe20 Point Contacts
- Bias-driven large power microwave emission from MgO-based tunnel magnetoresistance devices
- Synchronization of spin-transfer oscillators driven by stimulated microwave currents
- Phase locking dynamics of dipolarly coupled vortex-based spin transfer oscillators
- Phase Transitions of an Oscillator Neural Network with a Standard Hebb Learning Rule
- Intrinsic synchronization of an array of spin-torque oscillators driven by the spin-Hall effect
- Synchronization of spin-torque driven nanooscillators for point contacts on a quasi-1D nanowire: Micromagnetic simulations