Journal ArticleDOI
Nonlinear magnetoelectric effect in PZT/Terfenol-D nanobilayer on a substrate with surface stress
Yang Shi,Longfei Niu,Yuanwen Gao +2 more
TLDR
In this article, a nonlinear magnetoelectric (ME) effect model for lead zirconate titanate (PZT)/Terfenol-D nanobilayer on a substrate has been developed.Abstract:
Based on a linear piezoelectric constitutive relation and a nonlinear magnetostrictive constitutive relation, a nonlinear magnetoelectric (ME) effect model for lead zirconate titanate (PZT)/Terfenol-D nanobilayer on a substrate has been developed. In this study, the nonlinear ME coefficients at bending mode for two cases (without surface stress and with surface stress) are calculated by using Gurtin-Murdoch theory. The difference between two cases and the influence of residual surface tension are discussed. At the same time, the clamping effect of the substrate on ME effect is studied by altering the thickness ratio of the substrate and selecting different substrate materials. The influences of frequency of the magnetic field, PZT volume fraction on the ME effect are investigated, respectively. Finally, the dependence of ME effect on pre-stress is presented. The results show that for the nanobilayer, both the residual surface tension and surface stress have non-ignored effects on the ME effect. Besides, the resonant frequency of the nanobilayer is very low at the bending mode, which can be enhanced by increasing the thickness ratio of the substrate. Also, the substrate can weaken the ME effect due to the clamping effect, and a more soft substrate material should be selected for large ME effect. In addition, pre-stress plays an important role in the nonlinear ME coupling effect of the model developed.read more
Citations
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Magnetoelectric Properties in Piezoelectric and Magnetostrictive Laminate Composites : Electrical Properties of Condensed Matter
TL;DR: In this article, the authors obtained the highest magnetoelectric voltage coefficient of 4.68 V/cmOe at room temperature for the sample with high g33 PZT of 0.5 mm in thickness.
Journal ArticleDOI
Two-dimensional linear elasticity theory of magneto-electro-elastic plates considering surface and nonlocal effects for nanoscale device applications
Wenjun Wang,Peng Li,Feng Jin +2 more
Journal ArticleDOI
Modeling of nonlinear magnetoelectric coupling in layered magnetoelectric nanocomposites with surface effect
TL;DR: In this article, a nonlinear theoretical model for multiferroic magnetoelectric (ME) composites with different magnetostrictive materials based on the surface stress model is proposed.
Journal ArticleDOI
Theoretical study on nonlinear magnetoelectric effect and harmonic distortion behavior in laminated composite
Yang Shi,Yuanwen Gao +1 more
TL;DR: In this paper, a theoretical model for nonlinear magnetoelectric (ME) effect and harmonic distortion behavior in laminated composite, in which the complex nonlinear mechanical-thermo-magnetic characteristics of magnetostrictive phase are taken into consideration.
Journal ArticleDOI
A functionally graded composite cantilever to harvest energy from magnetic field
TL;DR: In this paper, two types of magnetic energy harvesters using functionally graded composite cantilever are analyzed theoretically for improving harvesting ability and adjusting resonant frequency, and two available methods are put forward to broaden the responsive frequency range.
References
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Journal ArticleDOI
Revival of the Magnetoelectric Effect
Abstract: Recent research activities on the linear magnetoelectric (ME) effect?induction of magnetization by an electric field or of polarization by a magnetic field?are reviewed. Beginning with a brief summary of the history of the ME effect since its prediction in 1894, the paper focuses on the present revival of the effect. Two major sources for 'large' ME effects are identified. (i) In composite materials the ME effect is generated as a product property of a magnetostrictive and a piezoelectric compound. A linear ME polarization is induced by a weak ac magnetic field oscillating in the presence of a strong dc bias field. The ME effect is large if the ME coefficient coupling the magnetic and electric fields is large. Experiments on sintered granular composites and on laminated layers of the constituents as well as theories on the interaction between the constituents are described. In the vicinity of electromechanical resonances a ME voltage coefficient of up to 90?V?cm?1?Oe?1 is achieved, which exceeds the ME response of single-phase compounds by 3?5 orders of magnitude. Microwave devices, sensors, transducers and heterogeneous read/write devices are among the suggested technical implementations of the composite ME effect. (ii) In multiferroics the internal magnetic and/or electric fields are enhanced by the presence of multiple long-range ordering. The ME effect is strong enough to trigger magnetic or electrical phase transitions. ME effects in multiferroics are thus 'large' if the corresponding contribution to the free energy is large. Clamped ME switching of electrical and magnetic domains, ferroelectric reorientation induced by applied magnetic fields and induction of ferromagnetic ordering in applied electric fields were observed. Mechanisms favouring multiferroicity are summarized, and multiferroics in reduced dimensions are discussed. In addition to composites and multiferroics, novel and exotic manifestations of ME behaviour are investigated. This includes (i) optical second harmonic generation as a tool to study magnetic, electrical and ME properties in one setup and with access to domain structures; (ii) ME effects in colossal magnetoresistive manganites, superconductors and phosphates of the LiMPO4 type; (iii) the concept of the toroidal moment as manifestation of a ME dipole moment; (iv) pronounced ME effects in photonic crystals with a possibility of electromagnetic unidirectionality. The review concludes with a summary and an outlook to the future development of magnetoelectrics research.
Journal ArticleDOI
Multiferroic magnetoelectric composites: Historical perspective, status, and future directions
TL;DR: In this article, a review of mostly recent activities can be found, with a brief summary of the historical perspective of the multiferroic magnetoelectric composites since its appearance in 1972.
Journal ArticleDOI
A continuum theory of elastic material surfaces
TL;DR: In this paper, a mathematical framework is developed to study the mechanical behavior of material surfaces, and the tensorial nature of surface stress is established using the force and moment balance laws using a linear theory with non-vanishing residual stress.
Journal ArticleDOI
Recent Progress in Multiferroic Magnetoelectric Composites: from Bulk to Thin Films
TL;DR: This Review tries to summarize what remarkable progress in multiferroic magnetoelectric composite systems has been achieved in most recent few years, with emphasis on thin films; and to describe unsolved issues and new device applications which can be controlled both electrically and magnetically.
Journal ArticleDOI
Surface stress in solids.
Morton E. Gurtin,A. Ian Murdoch +1 more
TL;DR: In a recent paper as mentioned in this paper, a general theory of surface stress was presented and several simple solutions within this theory were discussed, e.g., a simple solution to the problem of surface compression.