Magnetoelectric coupling susceptibility in novel lead-free 0–3 type multiferroic particulate composites of (1-x)Na0.5Bi0.5TiO3 -(x)CoCr0.4Fe1.6O4

Goel, Rahul; Syal, Rajat; Sharma, Gyaneshwar; Singh, Ramesh Kumar; Dhiman, Shobhna; Singh, Arun K.; Kumar, Sanjeev

doi:10.1016/j.matchemphys.2022.126004

Cited by 11 publications

(2 citation statements)

References 56 publications

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“…This variation could be associated with a better distribution of the phases. Finally, it is necessary to pointed out that the magnetoelectric coupling coefficients here presented are in good agreement with those found for other lead-free piezoelectric-ferrite particulate composites (2.02 mVcm −1 Oe −1 for 20 K 0.5 Na 0.5 NbO 3 /80 MnFe 2 O 4 [ 54 ], and 4.875 mVcm −1 Oe −1 for 60Na 0.5 Bi 0.5 TiO 3 -40CoCr 0.4 Fe 1.6 O 4 composite [ 55 ]), where for better magnetoelectric coupling coefficient values laminates composites [ 56 ] or films [ 57 ] are required.…”

Section: Resultssupporting

confidence: 87%

Relationship between the Synthesis Method and the Magnetoelectric Properties of Bismuth Sodium-Potassium Titanate/Nickel Cobalt Ferrite Lead-Free Composites

2023

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In this work, the influence of the synthesis methods of piezoelectric and magnetostrictive phases on the final properties of the Bi0.5(Na0.8K0.2)0.5TiO3-Ni0.5Co0.5Fe2O4 composites was studied. Different routes were used to individually synthesize each phase, and the composites were prepared using different fractions for each phase. Composites were sintered, and the structural, microstructural, dielectric, and magnetoelectric properties were evaluated. According to the selected synthesis method employed for each phase, different particle sizes and reactivities of the individual phases were obtained. These differences determined the suitable sintering temperature for each set of composites and were responsible for the final properties. In fact, magnetoelectric properties were modulated by the combination of composition and synthesis routes.

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Section: Resultssupporting

confidence: 87%

Relationship between the Synthesis Method and the Magnetoelectric Properties of Bismuth Sodium-Potassium Titanate/Nickel Cobalt Ferrite Lead-Free Composites

2023

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“…Firstly, they might be ascribed to Maxwell-Wagner-kind interfacial polarization [55,56], which is consistent with Koops phenomenological theory of dielectrics [57]. Secondly, these higher values could be influenced by space charge polarization arising from the structural heterogeneity within the material [58]. At lower frequencies, dipole relaxation comes into play where electric dipoles act in accordance with the frequency of the applied field.…”

Section: Microstructural Analysismentioning

confidence: 53%

Enhanced structural, magnetodielectric, and multiferroic response in Fe and Co Co-doped Barium strontium titanate ceramics

Khan,

Goel,

Gupta

et al. 2024

Phys. Scr.

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In this paper, the ambient temperature multiferroic effect resulting from the incorporation of transition metal ions (Fe3+ and Co2+) in lead-free BST[Ba0.7Sr0.3(Fex/2Cox/2)Ti1-xO3; x= 0, 0.01, 0.03, 0.05, 0.07] ceramics synthesized via the solid-state reaction (SSR) procedure has been thoroughly analyzed. The investigation consistently scrutinized the effects of augmenting transition metal co-doping on the structural, ferroelectric, dielectric, magnetic, and magnetodielectric characteristics. The X-ray diffraction (XRD) patterns for all ceramic compositions demonstrated the formation of a monophasic (P4mm) crystalline structure. The Raman analysis evidenced the presence of various modes, which are associated with the occurrence of the single-phase and provide strong corroboration for the X-ray diffraction observations. Scanning electron micrographs reveals that the inclusion of transition metal ions results in the diminution of grain size. The frequency-dependent dielectric characteristics were represented over the frequency range of 1 kHz to 1 MHz. The P-E hysteresis curves demonstrate a consistent reduction in the values of Ps and Pr, whereas, the M-H curve reveals the enhancement in magnetic properties with increased doping. The magnetodielectric analysis confirmed the interplay between the ferroelectric and ferromagnetic ordering. The BST-1CF sample exhibited the highest MC % value of 5.30 % along with the magnetoelectric coupling coefficient 'γ' of - 6.01×10^-1 (memu/g)^-2, making it a favorable entrant for the advancement of innovative non-volatile multiferroic memory gadgets.

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Improved multiferroic and magnetodielectric properties in Ni and Fe co-doped barium strontium titanate ceramics

Khan,

Goel,

Gupta

et al. 2024

J Mater Sci: Mater Electron

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Magnetoelectric coupling susceptibility in novel lead-free 0–3 type multiferroic particulate composites of (1-x)Na0.5Bi0.5TiO3 -(x)CoCr0.4Fe1.6O4

Cited by 11 publications

References 56 publications

Relationship between the Synthesis Method and the Magnetoelectric Properties of Bismuth Sodium-Potassium Titanate/Nickel Cobalt Ferrite Lead-Free Composites

Relationship between the Synthesis Method and the Magnetoelectric Properties of Bismuth Sodium-Potassium Titanate/Nickel Cobalt Ferrite Lead-Free Composites

Enhanced structural, magnetodielectric, and multiferroic response in Fe and Co Co-doped Barium strontium titanate ceramics

Improved multiferroic and magnetodielectric properties in Ni and Fe co-doped barium strontium titanate ceramics

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