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arXiv · 1102.1028

Current-induced dynamics of composite free layer with antiferromagnetic interlayer exchange coupling

Pavel Baláž·Józef Barnaś
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Abstract

Current-induced dynamics in spin valves including composite free layer with antiferromagnetic interlayer exchange coupling is studied theoretically within the diffusive transport regime. We show that current-induced dynamics of a synthetic antiferromagnet is significantly different from dynamics of a synthetic ferrimagnet. From macrospin simulations we obtain conditions for switching the composite free layer, as well as for appearance of various self-sustained dynamical modes. Numerical simulations are compared with simple analytical models of critical current based on linearized Landau-Lifshitz-Gilbert equation.

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Pavel Baláž, Józef Barnaś. 2011-03-06. Current-induced dynamics of composite free layer with antiferromagnetic interlayer exchange coupling. https://doi.org/10.1103/physrevb.83.104422

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