Power transfer in magnetoelectric resonators

Frederic Vanderveken; Bart Sorée; Florin Ciubotaru; Christoph Adelmann

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arXiv · 2204.03072

Power transfer in magnetoelectric resonators

Frederic Vanderveken·Bart Sorée·Florin Ciubotaru·Christoph Adelmann

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Abstract

We derive an analytical model for the power transfer in a magnetoelectric film bulk acoustic resonator consisting of a piezoelectric--magnetostrictive bilayer. The model describes the dynamic magnetostrictive influence on the elastodynamics via an effective frequency-dependent stiffness constant. This allows for the calculation of both the magnetic and elastic power absorption in the resonator as well as of its energy efficiency when such a resonator is considered as a magnetic transducer. The model is then applied to example systems consisting of piezoelectric ScAlN and magnetostrictive CoFeB, Ni, or Terfenol-D layers.

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Frederic Vanderveken, Bart Sorée, Florin Ciubotaru, Christoph Adelmann. 2022-04-06. Power transfer in magnetoelectric resonators. https://arxiv.org/abs/2204.03072

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