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Commensurability and chaos in magnetic vortex oscillations

Researchers at the Institute of Fundamental Electronics (CNRS / Univ. Paris-Sud) and the Unité Mixte de Physique CNRS/Thales, in collaboration with teams at City University of Hong Kong and the University of Ghent (Belgium), just highlight a phenomenon of self-modulation - and even chaotic phases - in the dynamic of magnetic vortex core, that is the central area of a few tens of nanometers in the center of the vortex. This work, which opens new perspectives on nanoscale microwave oscillators for secured communications.
S. Petit-Watelot, et al., Nature Physics(2012)