Phase locking dynamics of dipolarly coupled vortex-based spin transfer oscillators

Abstract

Phase locking dynamics of dipolarly coupled vortices excited by spin-polarized current in two identical nanopillars is studied as a function of the interpillar distance L. Numerical study and analytical model have proved the remarkable efficiency of magneto-static interaction to achieve phase locking. Investigating the dynamics in the transient regime towards phase locking, we extract the evolution of the locking time τ, the coupling strength μ and the interaction energy W. Finally, we compare this coupling energy with the one obtained by simple model.

4 pages, 4 figures

References in corpus (1)

• Excitation of spin dynamics by spin-polarized current in vortex state disks

Cited by in corpus (3)

• Measurement of the dynamical dipolar coupling in a pair of magnetic nano-disks using a Ferromagnetic Resonance Force Microscope
• Controlling the synchronization properties of two dipolarly coupled vortex based spin-torque nano-oscillators by the intermediate of a third one
• Selective control of vortex polarities by microwave field in two robustly synchronized spin-torque nano-oscillators