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Tannous C.,University of Western Brittany | Gieraltowski J.,Laboratoire des Domaines Oceaniques
Applied Physics Letters | Year: 2014

Hysteresis loops and Ferromagnetic Resonance (FMR) linewidths of Nickel ferromagnetic nanowire arrays are measured versus angle θH between the applied magnetic field angle and the common nanowire axis. Using Preisach analysis, we extract from the hysteresis loop an interaction parameter σi that strongly depends on θH. Extending the analysis to FMR lineshapes, we deduce a strong dependence of the FMR field linewidth ΔH on θH through the interaction parameter σi. Existence of a link between static (hysteresis) and dynamic (FMR) cases through θH might be exploited in contactless absolute angle sensing devices that could compete with inductive, Hall, and magnetoresistive devices. © 2014 AIP Publishing LLC. Source

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