Enhancing magnetoelectric effect via the curvature of composite cylinder

Wang, H. M.; Pan, Ernian; Chen, Weiqiu

doi:10.1063/1.3415528

Cited by 47 publications

(42 citation statements)

References 22 publications

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“…It is striking that, while under static deformation, physica an imperfect interface would always reduce the ME effect [23], it can positively affect the ME effect in the frequency domain >100 kHz. Depending on the boundary conditions and the curvature of the composite cylinder [24], we show that large ME effect can be achieved not only at the single resonance frequency, but also at double resonance frequencies with nearly equal amplitudes. A third resonance could be further observed when the interface property is properly tuned although its amplitude is small.…”

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confidence: 95%

“…Following Wang et al [24], we first derive an analytical solution for the ME effect in the composite with an imperfect interface and then we present some numerical results on these effects for given geometries and mechanical boundary conditions. It is striking that, while under static deformation, physica an imperfect interface would always reduce the ME effect [23], it can positively affect the ME effect in the frequency domain >100 kHz.…”

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confidence: 99%

“…The general ''plane-strain'' solution for the elastic displacement in the radial direction in the PM layer can be found as [24] …”

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confidence: 99%

“…On the inner and outer surfaces of the composite cylinder, we consider the following four sets of mechanical boundary conditions (MBCs) [24]: (i) Both the inner and outer surfaces are traction free (F-F) s rr (a) ¼ s rr (c) ¼ 0; (ii) The inner surface is clamped while the outer surface is traction free (C-F) u r (a) ¼ s rr (c) ¼ 0; (iii) The inner surface is traction free while the outer surface is clamped (F-C) s rr (a) ¼ u r (c) ¼ 0; and (iv) Both the inner and outer surfaces are clamped (C-C) u r (a) ¼ u r (c) ¼ 0. In order to model possible defects/damages on the interface or to simulate a thin glue layer between the PE and PM phases, we adopt the following spring layer model [23,27,28] for the interfacial behavior: where b þ denotes the surface of the PE layer at r ¼ b and b À that of the PM layer; and x is the interfacial parameter (compliance).…”

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confidence: 99%

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Large multiple resonance of magnetoelectric effect in a multiferroic composite cylinder with an imperfect interface

Wang

Pan

Chen

2011

Physica Status Solidi (b)

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The magnetoelectric (ME) effect in a bilayered piezoelectric/ piezomagnetic cylinder with an imperfect interface under harmonic excitation is solved analytically. We show that while the interface imperfection would always reduce the static ME effect, the imperfect interface could play a significant positive role in enhancing the ME effect in the frequency domain >100 kHz. Combining with the curvature of the cylinder and the mechanical boundary conditions, we further demonstrate that it is possible to excite large ME effect at double and even multiple resonance frequencies, a unique feature which should be important to various microwave devices, such as antennas.1 Introduction The magnetoelectric (ME) effect is defined as the ratio of the electric field output over the magnetic field input or vice versa. This coupling feature between the magnetic and electric fields can find important applications in various smart devices and systems, e.g. antennas, energy harvesters, magnetic sensors, current sensors, ME transformers, filters, phase shifters, and gradiometers [1][2][3][4]. While most single-phase multiferroic materials exhibit only a very weak ME effect, strong ME effects could be achieved by bonding a piezoelectric (PE) phase to a piezomagnetic (PM) one, the typical multiferroic composite. The ME effect in layered composite plates was investigated both analytically and experimentally [5][6][7][8][9][10][11][12]. The ME effect in PE/PM composites with other shapes, such as disk, cylinder and shell, was also reported [13][14][15]. Studies on multiferroic nanocomposites were further carried out [16,17]. Several practical and efficient ways were proposed to enhance the ME effect, for instance, by changing the geometric parameter and mechanical conditions [18], using the resonance driving frequency [19], employing the functionally graded materials [20], altering the polarization direction [21], and by applying different magnetic bias field [22].

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confidence: 95%

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confidence: 99%

“…The general ''plane-strain'' solution for the elastic displacement in the radial direction in the PM layer can be found as [24] …”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Large multiple resonance of magnetoelectric effect in a multiferroic composite cylinder with an imperfect interface

Wang

Pan

Chen

2011

Physica Status Solidi (b)

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“…Several ways have been proposed, such as using functionally graded materials [15][16][17], choosing curved structures-annular bilayer structures [18] or cylindrical layered composites [19][20][21][22], introducing nanocomposites [23][24][25][26], taking advantage of material nonlinearity [27,28], among others.…”

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confidence: 99%

Magnetoelectric effects in bilayer multiferroic core-shell composites

Wang

Pan

Chen

2017

Journal of Modeling in Mechanics and Materials

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Abstract:We investigate magnetoelectric (ME) effects in bilayer multiferroic core-shell composites in this paper. The composites are driven by the radial magnetic field and the induced radial deformation/vibration is studied. Two configurations are considered in a concise and uniform manner mathematically. One is spherical and the other is cylindrical. For bilayer core-shell composites, we show that the geometric configuration has a significant effect on the ME effect in multiferroic core-shell composites for both low-frequency and electromechanical resonance ranges. At the low-frequency range, except for the mechanically clamped case, the ME effects in spherical multiferroic composites are always stronger than that in cylindrical ones. At the electromechanical resonance range, for traction-free case, the fundamental resonance frequency of the spherical multiferroic composite is higher than that of the cylindrical one and thus the corresponding ME effect in spherical composite is stronger than that in cylindrical one.

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Nanostructured Multiferroics: Current Trends and Future Prospects

Visakh

Raneesh²

2021

Nanostructured Multiferroics

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Enhancing magnetoelectric effect via the curvature of composite cylinder

Cited by 47 publications

References 22 publications

Large multiple resonance of magnetoelectric effect in a multiferroic composite cylinder with an imperfect interface

Large multiple resonance of magnetoelectric effect in a multiferroic composite cylinder with an imperfect interface

Magnetoelectric effects in bilayer multiferroic core-shell composites

Nanostructured Multiferroics: Current Trends and Future Prospects

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