Magnetoelectric effect in a bi-rectangular structure composed of negative/positive magnetostrictive and piezoelectric flakes

Bi, Kaiming; Wang, Yingang; Pan, De’an; Wu, Wei

doi:10.1557/jmr.2011.258

J. Mater. Res.

2011

DOI: 10.1557/jmr.2011.258

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Magnetoelectric effect in a bi-rectangular structure composed of negative/positive magnetostrictive and piezoelectric flakes

Kaiming Bi

Yingang Wang

De’an Pan

et al.

Abstract: Magnetoelectric (ME) effect has been studied in bi-rectangular structure made up of epoxy-bonded negative/positive magnetostrictive and piezoelectric flakes. The ME effect is affected by negative and positive magnetostrictive flakes. The ME voltage coefficient at resonance frequency shows a nearly constant plateau behavior with the bias magnetic field increased from 1 to 3.5 kOe. There is no interface between magnetostrictive and piezoelectric flakes required to achieve ME coupling, which provides a new choice… Show more

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Cited by 3 publications

References 21 publications

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Temperature dependence of magnetoelectric coupling in FeBSiC/PZT/FeBSiC laminates

Jian

et al. 2014

Journal of Applied Physics

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Temperature dependence of the magnetoelectric (ME) coefficient was studied for FeBSiC/Pb(Zr, Ti)O3(PZT)/FeBSiC laminates over temperature range of −35 ∼ 85 °C. The variation in ME coefficient as a function of temperature was found to be significantly dependent on the volume fraction of FeBSiC layers and the lateral dimension of the laminate composites. Our results show that minimum number of FeBSiC layer with smaller lateral dimension can provide more stable ME coefficient in wide temperature range, due to the competition of the effects of temperature influenced piezoelectricity, magnetostriction, and mechanical properties of the constituents and the interfacial bonding layer. This finding indicate that it is beneficial to promote miniaturization of the ME composite based devices in view of temperature stability.

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Temperature dependence of magnetoelectric coupling in FeBSiC/PZT/FeBSiC laminates

Jian

et al. 2014

Journal of Applied Physics

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Effect of sintering temperature on the structure and electrical properties of KNNS-0.03BNZ ceramics

Zhao¹,

Li²,

Zhao³

et al. 2023

DJNB

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(K0.48Na0.52)NbO3-0.03Bi0.5Na0.5ZrO3 (KNNS-0.03BNZ) ceramics were prepared doped with 3 mol% Bi0.5Na0.5ZrO3 (BNZ), and the effect of sintering temperature on dielectric and piezoelectric properties of KNNS-0.03BNZ was also investigated. KNNS-0.03BNZ ceramics at all sintering temperatures exhibit a single perovskite structure, and the change of sintering temperature has no significant effect on the phase composition of KNNS 0.03BNZ ceramics. The Raman shifts of the ν1 and ν5 vibration modes have irregular changes in all sintering temperature ranges, indicating that there are polycrystalline phases coexisting in this region. With the change of sintering temperature, Tc slightly shifts to the high temperature direction, and TR-T slightly shifts to the high temperature direction, dielectric constant εr continuously increases, while dielectric loss tanδ firstly decreasing and then increasing. Thanks to the presence of a small amount of liquid phase in the ceramics sintered at 1160 ℃, piezoelectric coefficient d33 reaches 280 pC/N.

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Optimization of magnetoelectricity in thickness shear mode LiNbO3/magnetostrictive laminated composite

Cheng-Zhou¹,

Jian-Nan²,

Ma³

et al. 2017

Acta Phys. Sin.

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Magnetoelectric (ME) composites have recently attracted much attention and triggered a great number of research activities, owing to their potential applications in sensors and transducers. Many researches have focused on the enhancement of ME coefficient by choosing suitable composite material and vibration mode based on the coupling between stress and strain. Besides normal stress, another vibration mode, shear mode, is further discussed as a potential high-frequency resonant device for a high frequency magnetic field detector, and it is useful to optimize the shear ME coefficient to broaden the application scope of the compositions. In this paper, an elasticity method is used to calculate ME coefficients of thickness shear mode LiNbO3/magnetostrictive laminated composites for various crystal orientations of LiNbO3, magnetostrictive materials and material sizes. The stretch-shear structure and shear-shear modes of the composite with considering the boundary condition are both discussed and further optimized. According to the structure design of stretch-shear mode composite from the literature, we design a new structure to achieve the uniform and pure shear ME effect, which changes the magnetostrictive phase on the bonding part into rigid material to avoid stretch deformation. We find that in the shear-shear ME composite, the structure should not move in the in-plane direction in order to realize the parallelogram deformation under shear stress, but should be free in the thickness direction to meet the change of thickness with shear deformation. For the stretch-shear mode Metglas/LiNbO3 [(xzlt) x/y], the shear ME coefficient E15 as a function of orientation of LiNbO3 shows that the maximum E15 is 235.1 mV/(cmOe) when x=0 and y=30. The results indicate that optimal shear ME coefficient is obtained at (xzt) 30 LiNbO3, resulting from the maximum shear piezoelectric coefficient dp15. By changing the material size in stretch-shear composite, the shear ME coefficient increases with the increase of thickness of magnetostrictive phase, because the stretch force increases with the increase of the cross-sectional area of magnetostrictive phase. The maximum values of E15 are, respectively, 24.13 V/(cmOe) in the stretch-shear mode Terfenol-D/LiNbO3 and 11.46 V/(cmOe) in the shear-shear mode Metglas/LiNbO3 by the optimization of material sizes. Experimental results are in accordance with calculation results. It is confirmed that LiNbO3 (xzt) 30 is the best choice for achieving the largest shear ME effect, and thicker Terfenol-D can help to achieve a larger ME coefficient in this stretch-shear composite. This work provides a design method to choose the structure and crystal orientation of shear LiNbO3-based ME laminated composite, which shows a prospect of applications in high-mechanical-quality factor Qm and high-frequency magnetic detectors with shear resonant devices.

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Magnetoelectric effect in a bi-rectangular structure composed of negative/positive magnetostrictive and piezoelectric flakes

Cited by 3 publications

References 21 publications

Temperature dependence of magnetoelectric coupling in FeBSiC/PZT/FeBSiC laminates

Temperature dependence of magnetoelectric coupling in FeBSiC/PZT/FeBSiC laminates

Effect of sintering temperature on the structure and electrical properties of KNNS-0.03BNZ ceramics

Optimization of magnetoelectricity in thickness shear mode LiNbO3/magnetostrictive laminated composite

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