Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28393
Title: Giant magnetoelectric effect in mechanically clamped heterostructures of magnetostrictive alloy and piezoelectric crystal-alloy cymbal
Authors: Wang, Y
Or, SW 
Chan, HLW 
Zhao, X
Luo, H
Issue Date: 2008
Publisher: American Institute of Physics
Source: Applied physics letters, 2008, v. 93, no. 21, 213504 How to cite?
Journal: Applied physics letters 
Abstract: We experimentally and theoretically report a giant magnetoelectric (ME) effect in a heterostructure made by clamping a bar-shaped magnetostrictive Tb0.3 Dy0.7 Fe1.92 (Terfenol-D) alloy actuator and a cymbal-type piezoelectric 0.7Pb (Mg1/3 Nb2/3) O3 -0.3PbTiO3 (PMN-PT) (PMN-PT) single crystal-brass alloy transducer in a brass alloy frame. The reported ME effect originates from the stress-mediated product of the magnetostrictive effect in the Terfenol-D bar actuator and the mechanically transformed/amplified piezoelectric effect in the PMN PT-brass cymbal transducer under mechanically clamped conditions. The heterostructure exhibits a giant ME voltage coefficient (αV) of 440 mVOe at an optimal magnetic bias field of 400 Oe besides showing good linearity between the induced ME voltage and the applied ac magnetic field in the field range of 10-3 -10 Oe. This αV is larger than that of conventional Terfenol-D/PMN-PT laminated composites.
URI: http://hdl.handle.net/10397/28393
ISSN: 0003-6951
EISSN: 1077-3118
DOI: 10.1063/1.3037201
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