Chaotic dynamics in spin-vortex pairs

Abstract

We report on spin-vortex pair dynamics measured at temperatures low enough to suppress stochastic core motion, thereby uncovering the highly non-linear intrinsic dynamics of the system. Our analysis shows that the decoupling of the two vortex cores is resonant and can be enhanced by dynamic chaos. We detail the regions of the relevant parameter space, in which the various mechanisms of the resonant core-core dynamics are activated. We show that the presence of chaos can reduce the thermally-induced spread in the switching time by up to two orders of magnitude.

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Cited by in corpus (8)

• Chaos in Magnetic Nanocontact Vortex Oscillators
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• Input-driven chaotic dynamics in vortex spin-torque oscillator
• Third-order topological insulator in three-dimensional lattice of magnetic vortices
• Modulation and phase-locking in nanocontact vortex oscillators
• Bifurcation to complex dynamics in largely modulated voltage-controlled parametric oscillator
• Chaotic magnetization dynamics driven by feedback magnetic field
• Feedback voltage driven chaos in a three-terminal spin-torque oscillator