| High Magnetoelectric Properties in 0.68Pb(Mg1/3Nb2/3)O3-0.32PbTiO3 Single Crystal and Terfenol-D Laminate Composites |
| Jung-Ho Ryu, Shashank Priya, Kenji Uchino, Hyoun-Ee Kim1, Dwight Viehland2 |
International Center for Actuators and Transducers, Materials Research Institute, The Pennsylvania State University
1School of Materials Science and Engineering, Seoul National University
2Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University
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| ABSTRACT |
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Magnetoelectric(ME) laminate composites of $Pb(Mg_{1/3}Nb_{2/3})O_3-PbTiO_3 (PMN-PT)$ and Terfenol-D were prepared by sandwiching single crystals of PMN-PT between Terfenol-D disks. The magnetoelectric voltage coefficient (dE/dH) of the composite was determined to be 10.30 V/cm${cdot}$Oe, at 1 kHz and under a dc magnetic bias of 0.4 T. The value of dE/dH is ∼80 times higher than either that of naturally occurring magnetoelectrics or artificially-grown magnetoelectric composites. This superior magnetoelectric voltage coefficient is attributed to the high piezoelectric voltage constant as well as the high elastic compliance of PMN-PT single crystal and the large magnetostrictive response of Terfenol-D. |
| Key words:
Magnetoelectric composite, PMN-PT single crystal, Terfenol-D, Piezoelectric, Magnetostrictive |
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