Magnetoelectric effects due to elastic coupling in ferroelectric/ferromagnetic multilayers

Wang, Biao; Woo, C.H.

doi:10.1063/1.2939580

Cited by 9 publications

(3 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Frequencies scale with length L as 1/L 2 . While the latter is directly shown in equation (29), the former is consistent with single phase cantilever behavior but not obvious from (29) and was verified to confirm the validity of the model. The resonance variation with piezoelectric volume fraction is attributed to the associated changes in composition and thus density and elastic compliance.…”

Section: Resultsmentioning

confidence: 52%

“…However, theoretical modelling of ME multilayers is limited to the effective medium concept for longitudinal-mode operation, 26 finite-element method simulations, 27,28 or thermodynamic phase stability models for multiferroic multilayers on a substrate. 29 For bending-mode operation (Fig. 1), which is of great interest for detection of low frequency magnetic human bio signals for medical applications, the well-known bilayer models without substrate, 16,17 a graded bilayer model with substrate, 30 and a multilayer model without substrate 18 exist.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theory of magnetoelectric effect in multilayer nanocomposites on a substrate: Resonant bending-mode response

Krantz

Gerken

2013

AIP Advances

View full text Add to dashboard Cite

Resonant bending-mode magnetoelectric (ME) coefficients of magnetostrictive-piezoelectric multilayer cantilevers are calculated analytically using a model developed for arbitrary multilayers on a substrate. Without quality factor effects the ME coefficient maxima in the four-dimensional parameter space of layer numbers, layer sequences, piezoelectric volume fractions, and substrate thicknesses are found to be essentially constant for nonzero substrate thickness. Global maxima occur for bilayers without substrates. Vanishing magnetoelectric response regions result from voltage cancellation in piezoelectric layers or absence of bending-mode excitation. They are determined by the neutral plane position in the multilayer stack. With Q-factor effects dominated by viscous air damping ME coefficients strongly increase with cantilever thickness primarily due to increasing resonance frequencies. The results yield a layer specific prediction of ME coefficients, resonance frequencies, and Q-factors in arbitrary multilayers and thus distinction of linear-coupling and Q-factor effects from exchange interaction, interface, or nonlinear ME effects

show abstract

Section: Resultsmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Theory of magnetoelectric effect in multilayer nanocomposites on a substrate: Resonant bending-mode response

Krantz

Gerken

2013

AIP Advances

View full text Add to dashboard Cite

show abstract

“…In conjunction with device specific conservation laws and boundary conditions responses to external excitations can be calculated, whereby bulk properties are assumed for all materials. Augmented models have treated among others the effects of multilayers, [22][23][24][25][26] different layer sequences, [25][26][27] and graded materials properties. 28,29 Essentially all previous models focused on the open circuit case, whereby magnetic field-induced strains produce a polarization in the strain coupled layer system via the direct piezoelectric effect.…”

Section: Introductionmentioning

confidence: 99%

Static magnetoelectric and magnetoelastic response of composite cantilevers: Theory of short vs. open circuit operation and layer sequence effects

2015

View full text Add to dashboard Cite

The static bending-mode transverse magnetoelectric effect and the magnetic field-induced bending response of composite cantilevers with thin magnetostrictive (MS), piezoelectric (PE), and substrate (Sub) layers is investigated for the PE layer subjected to open and short circuit conditions. Analytic theories are presented for strain-coupled three layer composites of PE, MS, and Sub layers in all layer sequences. We use constitutive equations with linear coupling of stress, strain, H, E, and D fields and present results for the open and short circuit magnetoelectric and bending responses for arbitrary layer thickness ratios for the FeCoBSi-AlN-Si materials system. Besides a rich sequence dependent behavior the theory predicts great and systematic differences between the open and short circuit magnetoelectric response yielding maxima at similar MS and PE layer thicknesses in the open circuit and near vanishing PE layer thicknesses in the short circuit cases. In contrast, the open vs. short circuit bending response differences are pronounced but much smaller. Layer sequence systematics and implications for static H-field sensors will be discussed.

show abstract

Multiferroic Materials

Wang

2013

Advanced Topics in Science and Technology in China

View full text Add to dashboard Cite

Magnetoelectric effects due to elastic coupling in ferroelectric/ferromagnetic multilayers

Cited by 9 publications

References 24 publications

Theory of magnetoelectric effect in multilayer nanocomposites on a substrate: Resonant bending-mode response

Theory of magnetoelectric effect in multilayer nanocomposites on a substrate: Resonant bending-mode response

Static magnetoelectric and magnetoelastic response of composite cantilevers: Theory of short vs. open circuit operation and layer sequence effects

Multiferroic Materials

Contact Info

Product

Resources

About