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Fe-doped BaTiO3 has been synthesized with the doping level ranging from 0 to 0.02. Their transformation point from ferroelectric to paraelectric and the corresponding latent heat of phase transformation were observed to decrease with increasing doping level of the Fe3+. Bonded bilayers of Fe-doped BaTiO3 and terfenol-D have been fabricated and their magnetoelectric (ME) effect has been investigated. The sample containing a layer of BaTi0.985Fe0.015O3 was found to show a maximum transverse ME coupling in these bilayer composites. Analysis shows that the doped BaTiO3 with a doping level of about 1.5% should have a largest piezoelectric coefficient in magnetoelectric coupling.
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Wei et al. (2008) studied this question.
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