Giant magnetoelectric effect in mechanically clamped heterostructures of magnetostrictive alloy and piezoelectric crystal-alloy cymbal

Yaojin Wang; Siu Wing Or; Helen Lai Wa Chan; Xiangyong Zhao; Haosu Luo

doi:10.1063/1.3037201

Giant magnetoelectric effect in mechanically clamped heterostructures of magnetostrictive alloy and piezoelectric crystal-alloy cymbal

Yaojin Wang, Siu Wing Or, Helen Lai Wa Chan, Xiangyong Zhao, Haosu Luo

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

21 Citations (Scopus)

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 (Mg1/3Nb2/3) 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.

Original language	English
Article number	213504
Journal	Applied Physics Letters
Volume	93
Issue number	21
DOIs	https://doi.org/10.1063/1.3037201
Publication status	Published - 8 Dec 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3037201

http://hdl.handle.net/10397/28393

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title = "Giant magnetoelectric effect in mechanically clamped heterostructures of magnetostrictive alloy and piezoelectric crystal-alloy cymbal",

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 (Mg1/3Nb2/3) 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.",

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AU - Wang, Yaojin

AU - Or, Siu Wing

AU - Chan, Helen Lai Wa

AU - Zhao, Xiangyong

AU - Luo, Haosu

PY - 2008/12/8

Y1 - 2008/12/8

N2 - 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 (Mg1/3Nb2/3) 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.

AB - 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 (Mg1/3Nb2/3) 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.

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Giant magnetoelectric effect in mechanically clamped heterostructures of magnetostrictive alloy and piezoelectric crystal-alloy cymbal

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