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

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

2012-02-24

arxiv.org/abs/1202.5499v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

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 \tau, the coupling strength {\mu} and the interaction energy W. Finally, we compare this coupling energy with the one obtained by simple model.

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