Room‐Temperature Magnetoelectric Response in Molecular–Ionic Ferroelectric‐Based Magnetoelectric Composites

This is the first report on the occurrence of the exchange spring mechanism and a Griffiths-like phase in Ni–BaTiO3 magnetoelectric composites with 0–3 and 1–3 connectivity.

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Giant room temperature magnetoelectric response in strain controlled nanocomposites

Applied Physics Letters ◽

10.1063/1.4983357 ◽

2017 ◽

Vol 110 (20) ◽

pp. 202902 ◽

Cited By ~ 9

Author(s):

Mohsin Rafique ◽

Andreas Herklotz ◽

Kathrin Dörr ◽

Sadia Manzoor

Keyword(s):

Room Temperature ◽

Magnetoelectric Response

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Temperature Response of Magnetostrictive/Piezoelectric Polymer Magnetoelectric Laminates

MRS Proceedings ◽

10.1557/opl.2012.754 ◽

2012 ◽

Vol 1398 ◽

Cited By ~ 5

Author(s):

Jon Gutiérrez ◽

Andoni Lasheras ◽

Jose Manuel Barandiarán ◽

Jose Luis Vilas ◽

María San Sebastián ◽

...

Keyword(s):

High Temperature ◽

Room Temperature ◽

Vinylidene Fluoride ◽

Temperature Response ◽

Laminated Composite ◽

Laminate Composites ◽

Piezoelectric Polymer ◽

Poly Vinylidene Fluoride ◽

New Type ◽

Magnetoelectric Response

ABSTRACTThe temperature effect on the magnetoelectric response of hybrid magnetostrictive/piezoelectric laminated composites in the range from room temperature up to 85 ºC is presented. The samples analyzed consisted of alternating, stacked, layers of a magnetostrictive amorphous metal, and a piezoelectric polymer, bonded to each other with an epoxy. The maximum magnetoelectric effect was observed when the composites were driven at their electromechanical resonance. First, we present results on the fabricability of the laminated composite sensor consisting on Vitrovac 4040® (Fe39Ni39Mo4Si6B12) as the magnetostrictive amorphous component and two different piezoelectric polymers: poly(vinylidene fluoride) (PVDF) and 2,6(β-CN)APB/ODPA (poli 2,6) polyimide, a new type of high temperature piezoelectric polymer. At room temperature induced magnetoelectric voltages of 79.6 and 0.35 V/cm.Oe were measured when using PVDF and poli 2,6 polyimide respectively as the piezoelectric components. When heating, we have observed that the magnetoelectric response of the PVDF-containing device quickly decayed to about 5 V/cm.Oe, while for the poli 2,6- containing one it remained almost constat. We discuss the advantage of using this new piezoelectric polymer due to its good performance at high temperatures, making these magnetoelectric laminate composites suitable for high temperature applications.

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Magnetoelectric Composites: Applications, Coupling Mechanisms, and Future Directions

Nanomaterials ◽

10.3390/nano10102072 ◽

2020 ◽

Vol 10 (10) ◽

pp. 2072 ◽

Cited By ~ 1

Author(s):

Dhiren K. Pradhan ◽

Shalini Kumari ◽

Philip D. Rack

Keyword(s):

Room Temperature ◽

Single Phase ◽

Ferroelectric Materials ◽

Future Directions ◽

Magnetoelectric Composites ◽

Composite Systems ◽

Open Questions ◽

Operational Temperature ◽

Device Applications ◽

Coupling Mechanisms

Multiferroic (MF)-magnetoelectric (ME) composites, which integrate magnetic and ferroelectric materials, exhibit a higher operational temperature (above room temperature) and superior (several orders of magnitude) ME coupling when compared to single-phase multiferroic materials. Room temperature control and the switching of magnetic properties via an electric field and electrical properties by a magnetic field has motivated research towards the goal of realizing ultralow power and multifunctional nano (micro) electronic devices. Here, some of the leading applications for magnetoelectric composites are reviewed, and the mechanisms and nature of ME coupling in artificial composite systems are discussed. Ways to enhance the ME coupling and other physical properties are also demonstrated. Finally, emphasis is given to the important open questions and future directions in this field, where new breakthroughs could have a significant impact in transforming scientific discoveries to practical device applications, which can be well-controlled both magnetically and electrically.

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Theoretical study of nonlinear magnetoelectric response in laminated magnetoelectric composites

Composite Structures ◽

10.1016/j.compstruct.2013.09.039 ◽

2014 ◽

Vol 108 ◽

pp. 287-294 ◽

Cited By ~ 17

Author(s):

Guo-Liang Yu ◽

Huai-Wu Zhang ◽

Yuan-Xun Li ◽

Jie Li

Keyword(s):

Theoretical Study ◽

Magnetoelectric Composites ◽

Magnetoelectric Response

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Perovskite solid solutions with multiferroic morphotropic phase boundaries and property enhancement

Journal of Advanced Dielectrics ◽

10.1142/s2010135x16300048 ◽

2016 ◽

Vol 06 (02) ◽

pp. 1630004 ◽

Cited By ~ 1

Author(s):

M. Algueró ◽

H. Amorín ◽

C. M. Fernández-Posada ◽

O. Peña ◽

P. Ramos ◽

...

Keyword(s):

Solid Solutions ◽

First Principles ◽

Room Temperature ◽

Binary Systems ◽

Additional Material ◽

Large Phase ◽

Pressure Synthesis ◽

Magnetoelectric Response ◽

Phase Instabilities ◽

Comprehensive Study

Recently, large phase-change magnetoelectric response has been anticipated by a first-principles investigation of phases in the BiFeO3–BiCoO3 perovskite binary system, associated with the existence of a discontinuous morphotropic phase boundary (MPB) between multiferroic polymorphs of rhombohedral and tetragonal symmetries. This might be a general property of multiferroic phase instabilities, and a novel promising approach for room temperature magnetoelectricity. We review here our current investigations on the identification and study of additional material systems, alternative to BiFeO3–BiCoO3 that has only been obtained by high pressure synthesis. Three systems, whose phase diagrams were, in principle, liable to show multiferroic MPBs have been addressed: the BiMnO3–PbTiO3 and BiFeO3–PbTiO3 binary systems, and the BiFeO3–BiMnO3–PbTiO3 ternary one. A comprehensive study of multiferroism across different solid solutions was carried out based on electrical and magnetic characterizations, complemented with mechanical and electromechanical measurements. An in-depth structural analysis was also accomplished when necessary.

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Tunable room temperature magnetoelectric response of SmFeO3/poly(vinylidene fluoride) nanocomposite films

RSC Advances ◽

10.1039/c6ra01152g ◽

2016 ◽

Vol 6 (50) ◽

pp. 44843-44850 ◽

Cited By ~ 22

Author(s):

Anju Ahlawat ◽

Srinibas Satapathy ◽

Ram J. Choudhary ◽

Mandar M. Shirolkar ◽

Mrigendra K. Singh ◽

...

Keyword(s):

Room Temperature ◽

Vinylidene Fluoride ◽

Composite Films ◽

Nanocomposite Films ◽

Magnetoelectric Effects ◽

Poly Vinylidene Fluoride ◽

Magnetoelectric Response

SmFeO3/poly(vinylidene fluoride) composite films exhibit tunable magnetoelectric effects induced by strong strain interactions at the interfaces.

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Room Temperature Magnetoelectric Coupling, Electrical, and Optical Properties of BaFe2O4 – ZnO Nanocomposites

Integrated Ferroelectrics ◽

10.1080/10584587.2019.1668703 ◽

2019 ◽

Vol 201 (1) ◽

pp. 192-200

Author(s):

Papia Dutta ◽

S. K. Mandal ◽

A. Nath

Keyword(s):

Room Temperature ◽

Morphological Analysis ◽

Longitudinal Mode ◽

X Ray Diffraction ◽

Temperature Dependent ◽

X Ray ◽

Solid State Route ◽

Vis Spectroscopy ◽

Magnetoelectric Response ◽

Jonscher’S Power Law

Polycrystalline multiferroic nanocomposites with general formula xBaFe2O4 – (1 – x) ZnO (x = 0.2, 0.3, and 0.5) are prepared by chemical pyrophoric reaction method and solid-state route. The samples are characterized by X-ray diffraction which indicates the formation of both the phases in the composites. The morphological analysis and elemental compositions have been identified by using field emission scanning electron microscope and energy-dispersive X-ray analysis techniques. These micrographs reveal the particle sizes are in the nanometer dimension. The band gap of the nanocomposites is estimated employing UV-Vis spectroscopy. The DC electrical resistivity exhibits a metal-semiconductor transition for all the nanocompositions. Temperature-dependent AC conductivity of the nanocomposites is found to obey the Jonscher’s power law. The room temperature multiferroic behavior of the nanocomposites is confirmed from the detailed magnetoelectric response studies. The coupling coefficient is obtained maximum for x = 0.5 compositions for both in transverse and longitudinal mode due to the more ferrite content i.e., more magnetostrictive behaviour in the nanocompositions.

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