Abstract
The magnetoelectric (ME) effect induced by a rotating magnetic field, h, in the presence of a dc magnetic field, H 0, is investigated in a disk-shaped ferromagnetic FeBSiC - piezoelectric lead zirconate titanate bilayer structure. It is found that, due to the nonlinear field-dependence of magnetostriction λ(H) in the ferromagnetic layer, voltage harmonics are generated. These harmonics have a specific dependence of their amplitude and phase on H 0 and h, which is different from the case of excitation with a linearly polarized field. A theory is developed that describes characteristics of the ME effect for the cases of weak h ≪ H 0 and strong h ≫ H 0 excitation fields. The effect can be employed in designing highly sensitive sensors of permanent and alternating magnetic fields.
| Original language | English |
|---|---|
| Article number | 107001 |
| Number of pages | 7 |
| Journal | Smart Materials and Structures |
| Volume | 28 |
| Issue number | 10 |
| Early online date | 25 Jul 2019 |
| DOIs | |
| Publication status | Published - 29 Aug 2019 |
Keywords
- composite structure
- magnetoelectric effect
- magnetostriction
- piezoelectricity
ASJC Scopus subject areas
- Signal Processing
- Civil and Structural Engineering
- Atomic and Molecular Physics, and Optics
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Electrical and Electronic Engineering