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

Alexis Chevalier 1 Emmanuel Le Guen 2 Anne-Claude Tarot 3 Bernadette Grisart 2 David Souriou 4 Patrick Queffelec 2 Atul Thakur 5 Jean-Luc Mattei 1
1 Lab-STICC_UBO_MOM_MF
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance, UBO - Université de Brest
2 Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (UMR 3192)
3 IETR - Institut d'Electronique et de Télécommunications de Rennes
4 CEA-LETI - Laboratoire d'Electronique et des Technologies de l'Information
5 Spintronic Lab Center for Nanostorage Research, Taiwan
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.
Keywords : natural ferrimagnetic resonance measurements Ferrimagnetic materials ferrites microwave materials natural ferrimagnetic resonance measurements.
Type de document :
Article dans une revue
IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2011, 47 (10), pp.4132. 〈10.1109/TMAG.2011.2157899〉
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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, Institute of Electrical and Electronics Engineers, 2011, 47 (10), pp.4132. 〈10.1109/TMAG.2011.2157899〉. 〈hal-00656158〉

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