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Journal Articles Journal of Applied Physics Year : 2012

Combined fitting of alternative and direct susceptibility curves of assembled nanostructures

Abstract

Experimental ac-susceptibility curves at different frequencies (0.1 Hz ≤ f ≤ 1 kHz) were performed on samples prepared by physical and chemical pathways. By combining the triple fit method and a careful analysis of ac-experimental curves, we demonstrate an unambiguous and consistent determination method of both the magnetic particle size distribution and anisotropy for diluted granular nanostructures of magnetic clusters. Specifically, we highlight the importance of the size distribution in the determination of the magnetic anisotropy constant as well as the low relevance of the deduced parameters by considering alternative measurements alone.
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Dates and versions

hal-02530426 , version 1 (02-04-2020)

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A Hillion, Matthias Pauly, A Tamion, F Tournus, Matthias Hillenkamp, et al.. Combined fitting of alternative and direct susceptibility curves of assembled nanostructures. Journal of Applied Physics, 2012, 112 (12) (Article number : 123902), ⟨10.1063/1.4768837⟩. ⟨hal-02530426⟩
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