ABSTRACT It has been discovered that laminate composites of longitudinally magnetized magnetostrictive and transversely poled piezoelectric layers (a L--T laminate composite) have a giant magneto-electric (ME) effect under a low magnetic bias. The ME voltage coefficient is over 110 mV/Oe at a magnetic bias H = 500 Oe. This value is 5--10 times higher than that previously reported for transverse magnetized/transverse polarized (T--T) laminates of the same layer compositions at the same bias. In this paper, we also report the magneto-elasto-electric bieffect equivalent circuit of the L--T laminate composite and the corresponding theoretical formula of the magneto-electric voltage coefficient.
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