Magnetoelectric effects of laminated structures with particulate composite layers

We have investigated the magnetoelectric (ME) properties of laminated structures with piezoelectric and magnetostrictive particulate composite layers. Simple explicit expressions for the ME coefficients α33 and α31 of a bilayer comprising uniform piezoelectric and magnetostrictive lamina are first derived. They are then combined with our previously developed models for piezoelectricity (Wong et al 2001 J. Appl. Phys. 90 4690) and magnetostriction (Zhou and Shin 2005 IEEE Trans. Magn. 41 2071) of particulate composites, to obtain expressions for the ME effects of the final 'laminated particulate composites'. Theoretical calculations are discussed in relation to the published experimental data. Effects of the longitudinal and transverse magnetostrictions of the particles of the magnetostrictive layer on the ME responses of the overall structure are also examined.