Equivalent circuit analysis of a shear-shear mode resonance LiNbO<sub>3</sub>/Metglas bilayer composites with giant magnetoelectric response

Previous papers have reported equivalent circuit analysis and circuit models of longitudinal or transverse type magnetoelectric (ME) composites. In this paper, a hybrid Mason's equivalent circuit model is developed for shear piezomagnetic/shear piezoelectric (S-S) mode resonance bilayer composites structure. A high-quality factor (Q-factor) LiNbO3/Metglas shear mode ME structure is then investigated by theoretical modeling of both piezomagnetic and piezoelectric layers. A hybrid shear mode equivalent circuit is presented by introducing the concept of Mason's equivalent circuit model for the piezomagnetic layer. The modeling results reveal the potential of S-S model ME composites with high Q- factor to achieve an exceptional high ME coefficient, e.g., the bilayer structure at resonance of RF frequency (>MHz) exhibits a ME coefficient of 175,000 V/cmOe.

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Work Title Equivalent circuit analysis of a shear-shear mode resonance LiNbO<sub>3</sub>/Metglas bilayer composites with giant magnetoelectric response
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Open Access
Creators
  1. Lei Mei
  2. Meng Chien Lu
  3. Q. M. Zhang
License CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)
Work Type Article
Publisher
  1. Measurement: Journal of the International Measurement Confederation
Publication Date May 1, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1016/j.measurement.2021.109210
Deposited December 10, 2021

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