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Evidence of a strong magnetoelectric effect in a FeCoB/PMN-PT bilayer at microwave frequencies

Abstract : This paper deals with the study of magnetoelectric structures which could allow the emergence of a new class of microwave tunable devices. Our interest was focused on composite magnetoelectric structures which associate piezoelectric substrates and magnetostrictive layers in order to get a variation of microwave permeability thanks to an electric field. FeCoB/P(VDF-TrFE) and FeCoB/PMN-PT multilayers were investigated through static and dynamic measurements. We demonstrated a strong magnetoelectric effect in a FeCoB/PMN-PT bilayer. Indeed, the FeCoB film permeability decreases from 800 to 1 under 125 V in the 0.5-1.3 GHz frequency band.
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https://hal.univ-brest.fr/hal-00744539
Contributor : Vincent Laur <>
Submitted on : Tuesday, October 23, 2012 - 2:11:37 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:28 PM

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  • HAL Id : hal-00744539, version 1

Citation

Vincent Laur, Patrick Queffelec, Faliniana Rasoanoavy, Gor Lebedev, Bernard Viala, et al.. Evidence of a strong magnetoelectric effect in a FeCoB/PMN-PT bilayer at microwave frequencies. IEEE ICMM 2012, Aug 2012, Germany. pp.C07-C. ⟨hal-00744539⟩

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