Giant magnetoelectric effect in Metglas/polyvinylidene-fluoride laminates

Zhai, Junyi; Dong, Shuxiang; Xing, Zengping; Li, Jiefang; Viehland, Dwight

doi:10.1063/1.2337996

Cited by 248 publications

(158 citation statements)

References 22 publications

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“…Significantly enhanced ME effects are reported when compared with single-phase MF materials. For example, a giant ME voltage coefficient (3.1) is measured for Metglas (high-magnetic-susceptibility magnetostrictive alloy)/polyvinylidenefluoride (piezoelectric polymer) laminates, reaching 3 × 10 8 V (m · T) −1 [106], albeit only at microwave frequencies and resonant conditions. A comprehensive review of this field of research can be found in Nan et al [40].…”

Section: (I) Laminatesmentioning

confidence: 99%

Multi-ferroic and magnetoelectric materials and interfaces

Velev

Jaswal

Tsymbal

2011

Phil. Trans. R. Soc. A.

209

144

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The existence of multiple ferroic orders in the same material and the coupling between them have been known for decades. However, these phenomena have mostly remained the theoretical domain owing to the fact that in single-phase materials such couplings are rare and weak. This situation has changed dramatically recently for at least two reasons: first, advances in materials fabrication have made it possible to manufacture these materials in structures of lower dimensionality, such as thin films or wires, or in compound structures such as laminates and epitaxial-layered heterostructures. In these designed materials, new degrees of freedom are accessible in which the coupling between ferroic orders can be greatly enhanced. Second, the miniaturization trend in conventional electronics is approaching the limits beyond which the reduction of the electronic element is becoming more and more difficult. One way to continue the current trends in computer power and storage increase, without further size reduction, is to use multi-functional materials that would enable new device capabilities. Here, we review the field of multi-ferroic (MF) and magnetoelectric (ME) materials, putting the emphasis on electronic effects at ME interfaces and MF tunnel junctions.

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Section: (I) Laminatesmentioning

confidence: 99%

Multi-ferroic and magnetoelectric materials and interfaces

Velev

Jaswal

Tsymbal

2011

Phil. Trans. R. Soc. A.

209

144

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“…New combinations of magnetostrictive/piezoelectric layers were needed; thus, by using high permeability magnetostrictive materials such as iron-based Metglas alloys epoxied to poly(vinylidene fluoride)(PVDF) piezoelectric polymer [7], signals as high as 7.2 V/cm.Oe at low (sub-resonant) frequency and 310 V/cm.Oe at the electromechanical resonance of the composite, were obtained. This electromechanical resonance takes place when a mechanical resonant response is excited through the magnetostrictive effect of the magnetic constituent of the laminate, or what is equivalent at its corresponding magnetoelastic resonance (MER) frequency.…”

Section: Introductionmentioning

confidence: 99%

Metallic Glass / PVDF Magnetoelectric Laminates for Resonant Sensors and Actuators

Gutiérrez

Lasheras

Martins

et al. 2017

Preprint

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Among magnetoelectric (ME) heterostructures, ME laminates of the type Metglas-like / PVDF (magnetostrictive+piezoelectric constituents) have shown the highest induced ME voltages, usually detected at the magnetoelastic resonance of the magnetostrictive constituent. This ME coupling happens because of the high crosscorrelation coupling between magnetostrictive and piezoelectric material, and is usually associated with a promising application scenario for sensors or actuators. In this work we detail the basis of the operation of such devices, as well as some arising questions (as size effects) concerning their best performance. Also, some examples of their use as very sensitive magnetic fields sensors or innovative energy harvesting devices will be presented At the end, the challenges, future perspectives and technical difficulties that will determine the success of ME composites for sensor applications are discussed.

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“…2 Heterostructured materials with separate magnetic ͑or magnetostrictive͒ and ferroelectric components relax the competing demands and constraints on a single material. [3][4][5][6] Efforts have focused on magnetic materials with the largest possible magnetostriction in order to maximize the piezoelectric/magnetostrictive coupling. Magnetic flux concentration has resulted in ME coefficients as high as 21.46 V/cm Oe.…”

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confidence: 99%