Tuning electronic transport through magnetic field and magnetoelectric coupling of multiferroic nanocomposites

Dutta, Papia; Mandal, S. K.

doi:10.1080/00150193.2021.1890474

Cited by 2 publications

(3 citation statements)

References 30 publications

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“…Nickel ferrite (NiFe 2 O 4 ) composites were developed by Dutta et al [32], presenting room-temperature magnetoelectric voltage coefficients from 3.7 to 8 mV/cm Oe (Figure 9c,e). A similar magnetoelectric response was reported from La 0.7 Sr 0.3 MnO 3 -ZnO nanocomposites, presenting a maximum ME voltage coefficient of 2.6 and 2.4 mV/cm Oe for the transversal and longitudinal modes, respectively [91]. On the other hand, cobalt ferrite (CoFe 2 O 4 , CFO)-ZnO nanocomposites exhibited magnetoelectric coupling, which was evaluated through magnetocapacitance measurements at different frequencies and magnetic-field intensities.…”

Section: Zno Nanocompositessupporting

confidence: 74%

A Review of Magnetoelectric Composites Based on ZnO Nanostructures

2023

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The recent advancements in magnetoelectric (ME) materials have enabled the development of functional magnetoelectric composites for sensor applications in the medical and engineering sectors, as well as in energy harvesting and material exploration. Magnetoelectric composites rely on the interaction between piezoelectric and magnetoelastic materials by coupling the magnetization-induced strain to the strain-generated potential of the piezoelectric phase. This creates an increased interest around the development of novel piezoelectric materials that not only possess favorable piezoelectric properties but also fulfill specific material criteria such as biocompatibility, bioactivity, ease of fabrication and low cost. ZnO, and its nanostructures, is one such material that has been employed in the magnetoelectric research due to its remarkable piezoelectric, semiconducting and optical properties. Thus, this article provides a comprehensive review of the available literature on magnetoelectric composites based on ZnO micro- and nanostructures, aiming to present a concise reference on the methods, applications and future prospects of ZnO-based ME composites. Specifically, a brief introduction is provided, presenting the current research interests around magnetoelectric composites, followed by a concise mention of the magnetoelectric effect and its key aspects. This is followed by separate sections describing the relevant research on ZnO magnetoelectric composites based on ZnO thin-films, either pure or doped, and nano- and microrods composites, as well as nano composites comprised of ZnO nanoparticles mixed with ferromagnetic nanoparticles. Finally, the future prospects and the extension of ME ZnO research into nanowire and nanorod composites are discussed.

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Section: Zno Nanocompositessupporting

confidence: 74%

A Review of Magnetoelectric Composites Based on ZnO Nanostructures

2023

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“…The figure shows that for particulate composites, the ME coefficient increases slowly with the applied DC magnetic field and then decreases after reaching the maximum value of 44 mV Oe À1 cm À1 with an applied field of about 320 Oe. [28] Similarly, the variation in ME coefficient with applied magnetic field for laminated thick-film structures follows the same trend as that of particulate composite, as shown in Figure 8. Maximum ME coefficient is observed at 105 mV Oe À1 cm À1 around the applied field of 445 Oe for CuFe 2 O 4 /PZT/CuFe 2 O 4 and at 68 mV Oe À1 cm À1 around the field of 385 Oe for PZT/ CuFe 2 O 4 /PZT.…”

Section: Resultssupporting

confidence: 58%

Section: Resultsmentioning

confidence: 99%

Electrical and Magnetoelectric Properties of Particulate Composites and Laminated Trilayered Thick‐Film Composites

Bhavana¹,

Begum²,

Bellad³

2023

Physica Status Solidi (a)

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Hydraulic pressing and screen printing methods are used to create particulate magnetoelectric composites and laminated trilayered thick‐film composites. X‐ray diffraction studies reveal the presence of cubic spinel and tetragonal perovskite structures for individual powders of ferrite CuFe2O4 and ferroelectric‐phase PbZr0.58Ti0.42O3. The dielectric constant of particulate composites decreases with increasing frequency around 1 MHz and beyond that frequency, a saturation state is attained. However, for laminated films, the dielectric constant decreases up to 1 MHz and then increases. The maximum dielectric constant at low frequency for particulate CuFe2O4/PZT composites is around 72.2, whereas for laminated CuFe2O4/PZT/CuFe2O4 composites it is 4.97 and for PZT/CuFe2O4/PZT composites is 5.24. Loss tangent exhibits the same trend as dielectric constant with frequency, which is explained by space charge polarization and is consistent with Koop's phenomenological theory. The dielectric constant's variation with temperature describes the contribution of electric dipoles to polarization and both composites exhibit absorption peaks. The semiconducting nature of both particulate and laminated composites can be seen in the DC resistivity graph with frequency and as frequency increases, DC resistivity decreases for both composites, which is explained by the small polaron‐hopping phenomenon. The magnetoelectric coupling effect for particulate composites (44 mV Oe−1cm−1) is also found to be small when compared to laminated trilayered composites (CuFe2O4/PZT/CuFe2O4—105 mV Oe−1cm−1 and PZT/CuFe2O4/PZT—68 mV Oe−1cm−1).

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Tuning electronic transport through magnetic field and magnetoelectric coupling of multiferroic nanocomposites

Cited by 2 publications

References 30 publications

A Review of Magnetoelectric Composites Based on ZnO Nanostructures

A Review of Magnetoelectric Composites Based on ZnO Nanostructures

Electrical and Magnetoelectric Properties of Particulate Composites and Laminated Trilayered Thick‐Film Composites

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