Giant magnetoelectric coupling observed at high frequency in NiFe2O4–BaTiO3particulate composite

Shi, Zhenhua; Zhang, Jing; Gao, Daqiang; Zhu, Zhonghua; Zuo, Yi; Zhang, Zhipeng

doi:10.1039/d0ra05782g

Cited by 13 publications

(3 citation statements)

References 50 publications

(60 reference statements)

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“…The contraction in the reported ms values of bulk NIFE MNPs to 43.57 emu•g -1 is due to attachment of a non-magnetic moiety CT-AS biopolymer blend on the surface [46]. Thus, VSM studies suggest that there is an antagonistic effect of the CT-AS biopolymer blend on the surface to decrease the magnetization power by reducing the size of the particle.…”

Section: Analytical Techniques For Materials Characterizationmentioning

confidence: 98%

Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite

et al. 2020

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Statistics show that more than 700 thousand tons of dye are produced annually across the globe. Around 10–20% of this is used in industrial processes such as printing and dyeing, while about 50% of the dye produced is discharged into the environment without proper physicochemical treatment. Even trace amounts of dye in water can reduce oxygen solubility and have carcinogenic, mutagenic, and toxic effects on aquatic organisms. Therefore, before dye-containing wastewater is discharged into the environment, it must be properly treated. The present study investigates the green synthesis of nickel ferrite NiFe2O4 (NIFE) spinel magnetic nanoparticles (MNPs) via chemical coprecipitation of a solution of Ni2+/Fe3+ in the presence of a biopolymer blend of chitosan (CT) and ascorbic acid (AS). The magnetic nanomaterial was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy–energy dispersive X-ray analysis (SEM-EDX), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), differential scanning calorimetry (DSC), and vibrating-sample magnetometry (VSM). The material was further explored as a catalyst for the photocatalytic degradation of malachite green (MG) under visible light irradiation coupled with ultrasonic waves. The combination of 90 min of visible solar light irradiation with 6.35 W·mL−1 ultrasonic power at pH 8 resulted in 99% of the photocatalytic efficiency of chitosan-ascorbic acid@NIFE (CTAS@NIFE) catalyst for 70 mg·L−1 MG. The quenching of the photocatalytic efficiency from 98% to 64% in the presence of isopropyl alcohol (IPA) suggested the involvement of hydroxy (•OH) radicals in the mineralization process of MG. The high regression coefficients (R2) of 0.99 for 35, 55, and 70 mg·L−1 MG indicated the sonophotocatalysis of MG by CTAS@NIFE was best defined by a pseudo first-order kinetic model. The mechanism involves the adsorption of MG on the catalyst surface in the first step and thereby mineralization of the MG by the generated hydroxyl radicals (•OH) under the influence of visible radiation coupled with 6.34 W·mL−1 ultrasonic power. In the present study the application of photodegradation process with sonochemistry results in 99% of MG mineralization without effecting the material structure unlike happens in the case adsorption process. So, the secondary pollution (generally happens in case of adsorption) can be avoided by reusing the spent material for another application instead of disposing it. Thus, the ecofriendly synthesis protocol, ease in design of experimentation like use of solar irradiation instead of electric power lamps, reusability and high efficiency of the material suggested the study to be potentially economical for industrial development at pilot scale towards wastewater remediation.

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Section: Analytical Techniques For Materials Characterizationmentioning

confidence: 98%

Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite

et al. 2020

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“…The MD value calculated in our BCZT/ LSMO bilayer film is higher than that in other BTO/LSMO based systems reported in the literature (see Table III). In the bilayer multiferroic heterojunction, several factors induce the magnetoelectric coupling, such as elasticity, 76,77 magnetic exchange bias, 4 chargedbased coupling, 78 interfacial polarization, 79,80 etc. In the BCZT/ LSMO bilayer, our focus of discussion is on the BaO/MnO 2 ferroelectric/manganite interface.…”

Section: F Magnetodielectric Responsementioning

confidence: 99%

Interfacial strain induced giant magnetoresistance and magnetodielectric effects in multiferroic BCZT/LSMO thin film heterostructures

Chatterjee,

Yadav,

Mondal

et al. 2024

Journal of Applied Physics

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Layered thin films of the ferroelectric perovskite Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZT) and the ferromagnetic half-metal La0.80Sr0.20MnO3 (LSMO) are well-known multiferroic systems that show promise for spintronic applications. In this work, the structure–property relationships are explored in novel BCZT/LSMO thin film heterostructures with optimized ferroic properties. Epitaxial BCZT/LSMO thin film heterostructures are grown by varying the lattice mismatch strains on single crystal LaAlO3 (LAO) (100) and MgO (100) substrates using the pulsed laser deposition technique. The epitaxial strain in the films gives rise to a tetragonal distortion of the BCZT and LSMO unit cells and significantly affects their magnetotransport and magnetodielectric properties. The BCZT/LSMO/LAO heterostructure exhibits a colossal magnetoresistance effect due to a large out-of-plane tensile strain, which induces enhanced carrier hopping in the LSMO layer as compared to the BCZT/LSMO/MgO film. The larger tetragonal distortion of the BCZT unit cell in BCZT/LSMO/MgO contributes to higher dielectric permittivity, with a greater dielectric maxima temperature and freezing temperature. Magnetodielectric measurements reveal a hitherto unobserved giant magnetodielectric effect in the BCZT/LSMO/MgO film, attributed to a large in-plane strain, which induces interfacial polarization distortion at the interfacial layer. Overall, this work elucidates the unique strain and charge-mediated cross-coupled phenomena of magnetic and electric orders in multiferroic thin film heterostructures, which are critical for their technological applications.

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“…Most of the studies on the composites ceramics composed of piezoelectric material and ferrite have mainly payed attention to their dielectric, magnetic, and ME properties. [3,8,[11][12][13][14] In the reported work on the studies, there are no researchers have focused on the relationship between the ME effect and magnetostriction in the PZT/NFO composites. However, magnetostriction plays a significant role in the conversion of electric to magnetic fields, in such composites and the induced electrical signals caused by mechanical deformation due to the magnetostriction.…”

Section: Introductionmentioning

confidence: 99%

Study on Enhanced Magnetostriction in (x)PbZr_0.52Ti_0.48O₃-(1-x)NiFe₂O₄ Composites by Magnetoelectric Effect

Shi

2023

J. Phys.: Conf. Ser.

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Magnetoelectric composites (x)PbZr0.52Ti0.48O3(PZT)-(1-x)NiFe2O4 (NFO) with x values of 0.15, 0.30, 0.45, 0.55, 0.75, and 0.85 mol% were obtained by traditional solid phase reaction. The measured magnetic and magnetostriction properties are strongly dependent upon the molar fraction (1-x) of the NFO in the composites. The maximum magnetostriction coefficient of -52.4 ppm was observed in 0.3PZT-0.7NFO composite ceramic. All the magnetostriction in the composites is larger than the reported values. The larger magnetostriction would result from the magnetoelectric (ME) effect of the composites. We propose a model of the magnetostriction within the composites consisting of strain and polarization. The relationship between the ME effect and magnetostriction is discussed in the qualitative features of this model. This magnetoelectric composite material maintains a strong magnetostrictive effect, which can be used in multifunctional sensors. It will provide new ideas for the design of multifunctional sensors in the future.

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Giant magnetoelectric coupling observed at high frequency in NiFe₂O₄–BaTiO₃particulate composite

Abstract: A giant magnetoelectric voltage coupling coefficient without direct current magnetic field observed in NiFe2O4–BaTiO3 particulate composite is reported.

Cited by 13 publications

References 50 publications

Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite

Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite

Interfacial strain induced giant magnetoresistance and magnetodielectric effects in multiferroic BCZT/LSMO thin film heterostructures

Study on Enhanced Magnetostriction in (x)PbZr_0.52Ti_0.48O₃-(1-x)NiFe₂O₄ Composites by Magnetoelectric Effect

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Giant magnetoelectric coupling observed at high frequency in NiFe2O4–BaTiO3particulate composite

Abstract: A giant magnetoelectric voltage coupling coefficient without direct current magnetic field observed in NiFe2O4–BaTiO3 particulate composite is reported.

Cited by 13 publications

References 50 publications

Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite

Sonophotocatalytic Degradation of Malachite Green by Nanocrystalline Chitosan-Ascorbic Acid@NiFe2O4 Spinel Ferrite

Interfacial strain induced giant magnetoresistance and magnetodielectric effects in multiferroic BCZT/LSMO thin film heterostructures

Study on Enhanced Magnetostriction in (x)PbZr0.52Ti0.48O3-(1-x)NiFe2O4 Composites by Magnetoelectric Effect

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Product

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About

Giant magnetoelectric coupling observed at high frequency in NiFe₂O₄–BaTiO₃particulate composite

Study on Enhanced Magnetostriction in (x)PbZr_0.52Ti_0.48O₃-(1-x)NiFe₂O₄ Composites by Magnetoelectric Effect