Enhanced magnetoelectric effect in heterostructure of magnetostrictive alloy bars and piezoelectric single-crystal transformer

Leung, Chung Ming; Or, Siu Wing; Wang, Feifei; Ho, S. L.; Luo, Haosu

doi:10.1063/1.3529439

Cited by 17 publications

(17 citation statements)

References 24 publications

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“…Among the piezomagnetic materials, Terfenol‐D (Grirem Advanced Materials Co., Ltd., Beijing, China), is reported to be the one with giant piezomagnetic coefficients. Studies were carried out on the ME coupling, as well as the converse ME coupling of the PMN‐PT/Terfenol‐D multiferroic composites. Ryu et al .…”

Section: Introductionmentioning

confidence: 99%

In Situ Domain Structure Observation and Giant Magnetoelectric Coupling for PMN‐PT/Terfenol‐D Multiferroic Composites

et al. 2014

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In situ observations of ferroelectric domain structure evolution, and magnetoelectric (ME) coupling are investigated for PMN‐28PT/Terfenol‐D (abbreviation of Pb(Mg1/3Nb2/3)O3‐28PbTiO3/Tb0.3Dy0.7Fe2) and PMN‐33PT/Terfenol‐D composites under the magnetic loadings. The composite of PMN‐33PT/Terfenol‐D shows stronger ME coupling than that in PMN‐28PT/Terfenol‐D. At a thickness of 0.10–0.12 mm for the single crystal plate, a giant magnetoelectric coefficient (αME) up to 2 V/cm·Oe is obtained for PMN‐33PT/Terfenol‐D at a static magnetic field of 200 Oe and 1 kHz of the alternating magnetic field. In situ domain structure observations reveal the domain morphology change during the applied magnetic loadings. In PMN‐28PT, the domains are of predominantly rhombohedral (R) phase and they change into monoclinic MA phase upon the magnetic loading via the strain transferred between Terfenol‐D plate and PMN‐PT single crystal. In PMN‐33PT, domains of orthorhombic (O), R, and monoclinic MC coexist and phase transitions from O to MC and further to R phase occur upon the magnetic loading. The undulation and diversity of the domain structure makes the domains more susceptible to the magnetic loading via strain transferred between Terfenol‐D plate and PMN‐PT single crystal, and consequently, a strong ME coupling in the composites.

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Section: Introductionmentioning

confidence: 99%

In Situ Domain Structure Observation and Giant Magnetoelectric Coupling for PMN‐PT/Terfenol‐D Multiferroic Composites

et al. 2014

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“…10 shows the variations of the V ME of GE on ac magnetic drive field H ac under zero-biased magnetic field at resonance frequencies. It is seen that V ME of the FNRNF heterostrucrute exhibits good linear responses to H ac in the range of 0.1-2 Oe [19]. The H ac -to-V ME conversion factor for GE of FNRNF heterostructure, as determined from …”

Section: Resultsmentioning

confidence: 91%

“…The MEVCs of GE at optimum H dc = 442Oe is ∼5 times and ∼2.6 times larger than that of DE, corresponding to 1 st and 2 st resonance, respectively. This can be attributed to the step-up voltage-gain effect of RPT [19]- [21]. Fig.…”

Section: Methodsmentioning

confidence: 93%

“…Highperformance piezoelectric and magnetostrictive materials can enhance the ME response. For the piezoelectric materials, the piezoelectric transformer has been used in ME laminate composite due to its step-up voltage-gain effect [19]- [21]. As a result, in order to obtain large ME properties at zero-biased field in laminate composite, we present a three-phase magnetoelectric heterstructrue in this paper.…”

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confidence: 98%

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Large Self-Biased Magnetoelectric Properties in Heterostructure of Graded-Magnetostrictive Layers and a Rosen-Type Piezoelectric Transformer

Wen

et al. 2015

IEEE Sensors J.

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This paper develops a magnetoelectric (ME) heterostructure FeCuNbSiB/Ni/Rosen-type piezoelectric transformer (RPT)/Ni/FeCuNbSiB consisting of a RPT Pb(Zr 1−x Ti x )O 3 with its drive-end sandwiched between two graded-magnetostrictive layers of FeCuNbSiB/Ni. The graded-magnetostrictive layer FeCuNbSiB/Ni is made up of Fe-based nanocrystalline alloy FeCuNbSiB (Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 ) and pure Nickel (Ni). Due to the different magnetic characteristics of FeCuNbSiB and Ni (such as permeability, saturation magnetization and magnetostriction), the FeCuNbSiB/Ni layer exhibits an internal magnetic bias field, which results in the large self-biased ME properties. An amplified output voltage can be obtained between the two electrodes of the generator-end due to the step-up voltage-gain effect of the RPT. Consequently, the maximum zero-biased ME voltage coefficients of generator-end are ∼4.06 V/Oe at the first resonance frequency of ∼41 kHz, and ∼4.22 V/Oe at the second resonance frequency of ∼102 kHz. The results show that this heterostructure is of interest for high-sensitive magnetic field sensors.Index Terms-Large self-biased magnetoelectric, magnetoelectric heterostructure, graded-magnetostrictive layers, Rosen-type piezoelectric transformer.

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“…15 The ME rod was placed between the pole gap of a water-cooled, U-shaped electromagnet (Mylten PEM-8005 K), and the electromagnet was energized by a dc current supply (Sorensen DHP200-15) to give a dc magnetic bias field (H Bias ). An arbitrary waveform generator (Agilent 33210 A) connected to a constant-current supply amplifier (AE Techron 7796HF) was employed to drive a pair of Helmholtz coils for providing an ac magnetic drive field (H 3 ) over the prescribed frequency (f) range.…”

Section: Measurementsmentioning

confidence: 99%

High magnetoelectric effect at low magnetic basing in heterostructure rod of magnetostrictive fibers, piezoelectric tube, and epoxy binder

Leung

2015

Journal of Applied Physics

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A three-phase heterostructure rod of 35 mm length and 8 mm diameter is developed by embedding 18 pieces of length-magnetized Tb 0.3 Dy 0.7 Fe 1.92 magnetostrictive continuous fibers in a wall-thickness-polarized Pb(Zr, Ti)O 3 piezoelectric long-thin tube using an epoxy binder in order to study its magnetoelectric (ME) effect for passive sensing of axial magnetic fields. The heterostructure rod exhibits a high non-resonance ME voltage coefficient (a V ) of 38 mV/Oe for frequencies up to 10 kHz and an ultrahigh resonance a V of 680 mV/Oe at 32 kHz, both under a reasonably low magnetic bias field (H Bias ) of 120 Oe. The simultaneously high axial ME responses at the reasonably low H Bias , as confirmed theoretically and experimentally, can be ascribed to the realization of the relatively true magnetostrictive 33-mode and piezoelectric 31-mode of operation in the magnetostrictive continuous fibers and piezoelectric long-thin tube, respectively, as well as the reduction in the effect of demagnetization fields in the high aspect-ratio magnetostrictive continuous fibers. V C 2015 AIP Publishing LLC. [http://dx.

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Enhanced magnetoelectric effect in heterostructure of magnetostrictive alloy bars and piezoelectric single-crystal transformer

Cited by 17 publications

References 24 publications

In Situ Domain Structure Observation and Giant Magnetoelectric Coupling for PMN‐PT/Terfenol‐D Multiferroic Composites

In Situ Domain Structure Observation and Giant Magnetoelectric Coupling for PMN‐PT/Terfenol‐D Multiferroic Composites

Large Self-Biased Magnetoelectric Properties in Heterostructure of Graded-Magnetostrictive Layers and a Rosen-Type Piezoelectric Transformer

High magnetoelectric effect at low magnetic basing in heterostructure rod of magnetostrictive fibers, piezoelectric tube, and epoxy binder

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