Structural, dielectric and magnetoelectric coupling analysis in SrBi2Nb2O9–CoFe2O4 composites

Chaudhary, Prachi; Dabas, Samiksha; Kumar, Manish; Kumar, Arvind; Thakur, O. P.

doi:10.1007/s12034-020-02216-1

Cited by 2 publications

(1 citation statement)

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“…An electron trapped in an oxygen vacancy forms an F-center in FCE, which can alter the magnetic behavior of ferroelectric ceramics by overlapping the d shells of two magnetic ions such as Fe 3+ or Co 2+ [49]. In addition to a rise in M s and M r values, an increase in coercivity has been observed at high CF contents, confirming a shift in the SBN's intrinsic characteristic caused by CF's magnetic phase [50]. Factors such as magnetocrystalline anisotropy, magnetic moment, the number of metal cations, magnetic domain, and superexchange interactions all play a role in the coercivity's variation [51].…”

Section: Magnetic Propertiesmentioning

confidence: 82%

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi_2−X(CF)_XNb₂O₉ multiferroic nanocomposites

Garlapati,

Jaladi,

Kotikala

2023

Phys. Scr.

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Hydrothermally synthesized nano multiferroic SrBi2-X(CF)XNb2O9 (SBN-CF), (CF = CoFe2O4 & X = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) composite’s structure correlated magnetic attributes in view of reaction, exchange, and transport of ions have been comprehended from the perspective of electronic sector applications. The produced materials’ phase genesis, morphology, chemical composition, and magnetic characteristics were studied by XRD/Rietveld analysis, FEGSEM/EDS, FTIR, and VSM respectively. The Rietveld analysis of XRD data confirmed a single-phase orthorhombic structure of SBN. Further ferroelectric and cubic spinel structures of the ferrite phase have been noticed from the introduction of CF into the SBN host matrix. The crystallite size as computed (∼23–41 nm) from Debye Scherer’s formula was found to increase with dopant concentration. The imbibed morphological changes necessitated octahedral-shaped grains. The stoichiometric proportion with pronounced absorption bands is evident in EDS and FTIR studies. The impact of CF on SBN was unraveled at room temperature from the VSM study. The saturation magnetization was increased from 0.00 to 3.96 emu g−1, and the obtained coercivity values enhanced from 0.50 to 1400 Oe, due to the random fluctuations of the energy due to domain wall movements, interacting with the defective structure of the SBN material. The stress-induced distortion due to the variation in concentration of CF in SBN was configured from Y-K angles and increased from 33.55° to 61.49°. The high coercivity with a squareness value of less than 0.5 enunciates the genesis of a new class of materials for use in permanent magnet applications and memory devices.

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Section: Magnetic Propertiesmentioning

confidence: 82%

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi_2−X(CF)_XNb₂O₉ multiferroic nanocomposites

Garlapati,

Jaladi,

Kotikala

2023

Phys. Scr.

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Synthesis, characterization, and dielectric properties of Y-doped strontium bismuth niobate (SrBi2−xYxNb2O9) ceramics: a lead-free ferroelectric alternative with enhanced performance

Anasser,

Daoud,

Zegzouti

et al. 2024

J. Korean Ceram. Soc.

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Structural, dielectric and magnetoelectric coupling analysis in SrBi2Nb2O9–CoFe2O4 composites

Cited by 2 publications

References 49 publications

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi_2−X(CF)_XNb₂O₉ multiferroic nanocomposites

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi_2−X(CF)_XNb₂O₉ multiferroic nanocomposites

Synthesis, characterization, and dielectric properties of Y-doped strontium bismuth niobate (SrBi2−xYxNb2O9) ceramics: a lead-free ferroelectric alternative with enhanced performance

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Structural, dielectric and magnetoelectric coupling analysis in SrBi2Nb2O9–CoFe2O4 composites

Cited by 2 publications

References 49 publications

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi2−X(CF)XNb2O9 multiferroic nanocomposites

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi2−X(CF)XNb2O9 multiferroic nanocomposites

Synthesis, characterization, and dielectric properties of Y-doped strontium bismuth niobate (SrBi2−xYxNb2O9) ceramics: a lead-free ferroelectric alternative with enhanced performance

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Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi_2−X(CF)_XNb₂O₉ multiferroic nanocomposites

Investigation on the structure-optimized magnetic properties of hydrothermally synthesized SrBi_2−X(CF)_XNb₂O₉ multiferroic nanocomposites