Pressure Dependence of the Frequency Permeability Spectra of Soft Ferrite Composite Materials: A Method of Measuring the Natural Ferromagnetic Resonance Frequency - Université de Bretagne Occidentale
Journal Articles IEEE Transactions on Magnetics Year : 2011

Pressure Dependence of the Frequency Permeability Spectra of Soft Ferrite Composite Materials: A Method of Measuring the Natural Ferromagnetic Resonance Frequency

Abstract

Experimental studies on the complex susceptibility of soft magnetic composite materials (magnetostrictive Ni-Zn and Ni-Zn-Co spinels) in their region of ferrimagnetic resonance (FMR) show that the FMR is an increasing function of the applied pressure. It is shown that powders could advantageously replace their sintered materials counterpart to measure without any ambiguity the natural ferrimagnetic resonance (NFMR) frequencies of bulk materials. It is also shown that such soft ferrite composites can be realized in order to shift FMR to higher values, and to obtain low magnetic losses up to 900 MHz. High frequencies applications can be envisaged.
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Dates and versions

hal-00656158 , version 1 (19-03-2013)

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Alexis Chevalier, Emmanuel Le Guen, Anne-Claude Tarot, Bernadette Grisart, David Souriou, et al.. Pressure Dependence of the Frequency Permeability Spectra of Soft Ferrite Composite Materials: A Method of Measuring the Natural Ferromagnetic Resonance Frequency. IEEE Transactions on Magnetics, 2011, 47 (10), pp.4132. ⟨10.1109/TMAG.2011.2157899⟩. ⟨hal-00656158⟩
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