Spin dynamics in exchange-biased F/AF bilayers
D. Spenato (1), J. Ben Youssef (1), H. Le Gall (1) ((1) Laboratoire de, Magnetisme de Bretagne, Brest, France)
TL;DR
This paper investigates the spin dynamics in ferromagnetic/antiferromagnetic bilayers over a broad frequency range, proposing a phenomenological model and comparing experimental results with theoretical predictions.
Contribution
It introduces a phenomenological Landau-Lifshitz-based model for the complex permeability of F/AF bilayers and validates it against experimental data.
Findings
The model accurately predicts the spin dynamics across the frequency range.
Experimental results align well with theoretical predictions.
Insights into exchange bias effects on spin behavior.
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.
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