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American Physical Society, Physical review B, 10(85)

DOI: 10.1103/physrevb.85.100409

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

Journal article published in 2012 by Anatoly D. Belanovsky, Nicolas Locatelli ORCID, P. N. Skirdkov ORCID, F. Abreu Araujo ORCID, Julie Grollier, Konstantin A. Zvezdin ORCID, Vincent Cros, Anatoly K. Zvezdin
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This paper is available in a repository.

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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. ; Comment: 4 pages, 4 figures