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ABSTRACT
A magnetoelectric (ME) laminate composite consisting of a ferroelectric Pb(Fe0.52Nb0.48)O3-PbTiO3 (PFNT) single crystal and two magnetostrictive Tb1-xDyxFe2-y (Terfenol-D) layers has been developed and its ME voltage coefficients (α E ) depending on different magnetic bias fields and various frequencies have been studied. It shows a strong magnetoelectric effect with the largest α E of 2.43 V/cm Oe. Furthermore, both non-zero value of α E in absent of the magnetic bias field and different values of α E when reversing of the direction of the magnetic bias field were also observed. The phenomena mentioned above have never been reported before and might due to the ferroelastic effect of the PFNT single crystal, which deserves further study.
ACKNOWLEDGMENTS
This research was supported by the National Natural Science Foundation of China (Grant Nos. 50672034 and 10021001) and the National Key Basic Research Program of China (Grant Nos. 2002CB613303 and 2006CB921800). Thanks also to Prof. H. S. Luo for his PFN-PT samples.