  Magnetoelectric (ME) effect has been studied in a structure of a
magnetostrictive TbFe2 alloy, two piezoelectric Pb(Zr,Ti)O3 (PZT) ceramics, and
two nonmagnetic flakes. The ME coupling originates from the
magnetic-mechanical-electric transform of the magnetostrictive effect in TbFe2
and the piezoelectric effect in PZT by end bonding, instead of interface
bonding. Large ME coefficients of 10.5 and 9.9 Vcm-1Oe-1 were obtained at the
first planar acoustic and third bending resonance frequencies, which are larger
than that of conventional layered TbFe2/PZT composites. The results show that
the large ME coupling can be achieved without interface coupling.
