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Magnetization reversal and spin dynamics exchange in biased F/AF bilayers probed with complex permeability spectra

David Spenato·Jamal Ben Youssef·Henri Le Gall
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Abstract

The spin dynamics of the ferromagnetic pinned layer of ferro-antiferromagnetic coupled NiFe/MnNi bilayers is investigated in a broad frequency range (30 MHz-6 GHz). A phenomenological model based on the Landau-Lifshitz equation for the complex permeability of the F/AF bilayer is proposed. The experimental results are compared to theoretical predictions. We show that the resonance frequencies, measured during the magnetization, are likewise hysteretic.

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David Spenato, Jamal Ben Youssef, Henri Le Gall. 2003-11-14. Magnetization reversal and spin dynamics exchange in biased F/AF bilayers probed with complex permeability spectra. https://doi.org/10.1063/1.1557959

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