Resonance magnetoelectric effect in Ni/Pb(Zr,Ti)O3/Terfenol-D trilayered composites with different mechanical boundary conditions

Magnetoelectric Ni/Pb(Zr,Ti)O-3 (PZT)/Tb1-xDyxFe2-y (Terfenol-D) trilayered composites were made up of negative magnetostrictive/piezoelectric/positive magnetostrictive layers, and bonded to nonmagnetic glass plates to obtain three different mechanical boundary conditions: (i) both ends of sample traction free (F-F), (ii) one end clamped while the other traction free (C-F), and (iii) both ends of sample clamped (C-C). In these three modes, various experimental values of resonance frequencies were obtained in 1-140 kHz range, which agree well with the calculated ones. In the C-F mode six resonance frequencies exist, which may be useful for multifrequency operation. The low resonance frequency of the C-F mode can be used to decrease the eddy current loss of the magnetostrictive phase and increase the lifetime of the devices. (C) 2014 AIP Publishing LLC.