Magnetization reversal and spin dynamics exchange in biased F/AF bilayers probed with complex permeability spectra
classification
❄️ cond-mat
keywords
bilayerscomplexdynamicsmagnetizationpermeabilityspinbiasedbilayer
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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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