Equivalent circuit analysis of a shear-shear mode resonance LiNbO3/Metglas bilayer composites with giant magnetoelectric response

Lei Mei, Meng Chien Lu, Q. M. Zhang

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Article number109210
JournalMeasurement: Journal of the International Measurement Confederation
StatePublished - May 2021

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Electrical and Electronic Engineering


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