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Composite Magnetoelectrics by N Sun, S Priya, G Srinivasan

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6.3. Magnetoelectric composite

It has been shown both experimentally and theoretically that the strain-mediated ME coupling in a magnetostrictive–piezoelectric layered composite or laminate is several orders of magnitude larger as compared to single-phase materials. The direct ME (DME) and converse ME (CME) effect in the laminate composites consisting of a piezoelectric layer (P-layer) and a magnetostrictive layer (M-layer) can be represented by the following schematics:
image
Figure 6.2 (a) Three-state switching (+Pr, 0, Pr) in 0.2PFW/0.8PZT: P–E hysteresis under the application of an external magnetic field from 0 to 0.5 T changes the polarization from ...

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