Theoretical study on nonlinear magnetoelectric effect and harmonic distortion behavior in laminated composite

Shi, Yang; Gao, Yuanwen

doi:10.1016/j.jallcom.2015.05.229

Cited by 27 publications

(11 citation statements)

References 42 publications

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“…Hence, ME measurements on both bilayer CFOI/PZT and bilayer CFOA/PZT are performed for various H ac values in the interval between 0.8 The ME effect tends to behave as with dynamic magnetostriction: an enhancement of the effect until reaching an optimum H ac field and then a decrease of the signal. As with the piezomagnetic effect, the decrease following the maximum can be explained by the nonlinearity of the magnetostrictive curve due to the magnetic hysteretic conduct of the ceramic, leading to an increase of harmonics with an increasing H ac [57,[81][82][83][84][85]. To visualize this effect, we report in Fig.…”

Section: Magnetoelectric Effectmentioning

confidence: 94%

“…It has also been modeled analytically by some authors [56][57][58] based on Gibbs free energy. However, the piezomagnetic coefficient is commonly extrapolated from the strain derivative of the quasistatic magnetostrictive curve, namely, q dc ¼ ∂λ=∂H dc [59], and is usually considered the main parameter characterizing the magnetostrictive materials.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Magnetostriction of CoFe2O4 and Its Role in Magnetoelectric Composites

et al. 2018

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Applications of magnetostrictive materials commonly involve the use of the dynamic deformation, i.e., the piezomagnetic effect. Usually, this effect is described by the strain derivative ∂λ=∂H, which is deduced from the quasistatic magnetostrictive curve. However, the strain derivative might not be accurate to describe dynamic deformation in semihard materials as cobalt ferrite (CFO). To highlight this issue, dynamic magnetostriction measurements of cobalt ferrite are performed and compared with the strain derivative. The experiment shows that measured piezomagnetic coefficients are much lower than the strain derivative. To point out the direct application of this effect, low-frequency magnetoelectric (ME) measurements are also conducted on bilayers CFO=PbðZr; TiÞO 3 . The experimental data are compared with calculated magnetoelectric coefficients which include a measured dynamic coefficient and result in very low relative error (<5%), highlighting the relevance of using a piezomagnetic coefficient derived from dynamic magnetostriction instead of a strain derivative coefficient to model ME composites. The magnetoelectric effect is then measured for several amplitudes of the alternating field H ac , and a nonlinear response is revealed. Based on these results, a trilayer CFO/PbðZr; TiÞO 3 /CFO is made exhibiting a high magnetoelectric coefficient of 578 mV=A (approximately 460 mV=cm Oe) in an ac field of 38.2 kA=m (about 48 mT) at low frequency, which is 3 times higher than the measured value at 0.8 kA=m (approximately 1 mT). We discuss the viability of using semihard materials like cobalt ferrite for dynamic magnetostrictive applications such as the magnetoelectric effect.

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Section: Magnetoelectric Effectmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Dynamic Magnetostriction of CoFe2O4 and Its Role in Magnetoelectric Composites

et al. 2018

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“…Then, harmonic distortion due to the amplitude of the current was measured [3,[32][33][34][35]. The corresponding ME voltages were recorded by a digital oscilloscope (without passing through the buffer), and the FFT was calculated.…”

Section: Me Sensormentioning

confidence: 99%

Enhanced magnetoelectric voltage in ferrite/PZT/ferrite composite for AC current sensor application

Aubert

Loyau

Chaplier

et al. 2018

J Mater Sci: Mater Electron

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In this paper, we report the fabrication of a rare-earth free current sensor based on a PZT/NiCoZn-ferrite magnetoelectric (ME) trilayer composite disk. To improve the sensitivity of the sensor, the structure uses an in-plane series connection, which increases the ME voltage by two for a fixed volume. Then, we propose a full characterization of the sensor : electrical modeling, low and high frequency limits, sensitivity, linearity, distortion and resolution. The device is also evaluated under sinus, square, and triangle waveform currents, which are excitation signals commonly used in the field of electrical engineering. The current sensor shows high current sensitivity (90 mV/A), good linearity from 0.001 A to 30 A and low added impedance (0.01 Ω) in a frequency range of 10 Hz-30 kHz for a very compact structure (4 cm 3 ). It also exhibits a high resolution of 1 mA (for a 1 A peak signal) and good stability.

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“…In addition, many FM materials (e.g., Terfenol-D and Ni) present complex multi-field coupling characteristics, which have a significant impact on the ME response of ME composites under combined stress, magnetic and thermal loadings. Previous work conducted on bulk ME composites showed that the interplay of these external fields makes the optimal design of ME devices more complicated [24,25,26,27,28,29]. As for the multiferroic composites with nano-scale thickness, the applied external stimuli (e.g., magnetic field, pre-stress and temperature) influence the magnetostriction and magnetization of FM phase, so they may have effects on strain gradient as well as the materials’ properties of FM materials.…”

Section: Introductionmentioning

confidence: 99%

Size-Dependent and Multi-Field Coupling Behavior of Layered Multiferroic Nanocomposites

Shi

Wang

2019

Materials

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The prediction of magnetoelectric (ME) coupling in nano-scaled multiferroic composites is significant for nano-devices. In this paper, we propose a nonlinear multi-field coupling model for ME effect in layered multiferroic nanocomposites based on the surface stress model, strain gradient theory and nonlinear magneto-elastic-thermal coupling constitutive relation. With this novel model, the influence of external fields on strain gradient and flexoelectricity is discussed for the first time. Meanwhile, a comprehensive investigation on the influence of size-dependent parameters and multi-field conditions on ME performance is made. The numerical results show that ME coupling is remarkably size-dependent as the thickness of the composites reduces to nanoscale. Especially, the ME coefficient is enhanced by either surface effect or flexoelectricity. The strain gradient in composites at the nano-scale is significant and influenced by the external stimuli at different levels via the change in materials’ properties. More importantly, due to the nonlinear multi-field coupling behavior of ferromagnetic materials, appropriate compressive stress and temperature may improve the value of ME coefficient and reduce the required magnetic field. This paper provides a theoretical basis to analyze and evaluate multi-field coupling characteristics of nanostructure-based ME devices.

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Theoretical study on nonlinear magnetoelectric effect and harmonic distortion behavior in laminated composite

Cited by 27 publications

References 42 publications

Dynamic Magnetostriction of CoFe2O4 and Its Role in Magnetoelectric Composites

Dynamic Magnetostriction of CoFe2O4 and Its Role in Magnetoelectric Composites

Enhanced magnetoelectric voltage in ferrite/PZT/ferrite composite for AC current sensor application

Size-Dependent and Multi-Field Coupling Behavior of Layered Multiferroic Nanocomposites

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