Effect of Mn substitution on structural and dielectric properties of bismuth ferrite

Sharma, Ankit; Hemanta, H; Sharma, H. Basantakumar

doi:10.1080/00150193.2017.1361257

Cited by 14 publications

(2 citation statements)

References 8 publications

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“…The numerical value of tan δ for each sample was computed using the equation tan nobreak0em0.25em⁡ δ = 1 false( 2 π f C P R P false) where R P is the parallel resistance, C P is the parallel capacitance, f is the frequency, and δ is the loss angle. According to the Maxwell–Wagner model of polarization together with Koop’s phenomenological theory, energy loss and dielectric constant are almost independent of frequency at higher frequencies . This phenomenon implies that polarization in any polycrystalline material is brought on by well-conducting grains spaced apart by weak grain boundaries.…”

Section: Resultsmentioning

confidence: 99%

“…According to the Maxwell−Wagner model of polarization together with Koop's phenomenological theory, energy loss and dielectric constant are almost independent of frequency at higher frequencies. 40 This phenomenon implies that polarization in any polycrystalline material is brought on by wellconducting grains spaced apart by weak grain boundaries. Space charges may follow the applied field because of their longer relaxation times at lower frequencies, but because they lag the applied field at higher frequencies, they are unable to rest.…”

Section: D Amentioning

confidence: 99%

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Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe_1–xMn_xO₃ for Efficient Antioxidant Activity

Uzair,

Kanwal,

Khan

et al. 2023

ACS Omega

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Manganese-doped bismuth ferrites were synthesized using the coprecipitation method with the green extract Azadirachta indica. Our incorporation of the transition element, manganese, into bismuth ferrites tackles the challenge of increased leakage current often observed in intrinsic bismuth ferrites. We gained key insights through a comprehensive examination of the structural, dielectric, and optical properties of these materials, utilizing Fourier transform infrared spectroscopy (FTIR), impedance spectroscopy, and UV–visible spectroscopy, respectively. The formation of an octahedral geometry was confirmed using the FTIR technique. UV–visible spectroscopy indicated that 2% Mn doping is optimal, while we obtained a low band gap energy (2.21 eV) and high refractive index (3.010) at this amount of doping. The manufactured materials exhibited the typical ferrite-like dielectric response, that is, the dielectric parameter gradually decreased as the frequency increased and then stayed constant in the high-frequency range. Using the diphenylpicrylhydrazyl (DPPH) free radical assay, we also examined the antioxidant activity of bismuth ferrites. We concluded that among different Mn-doped BiFeMnO3-based nanomaterials, the 2 wt % Mn-doped BiFeMnO3 shows the highest antioxidant activity. This finding substantiates the efficacy of the optimized material with regard to its potent antioxidant activity, positioning it as a promising candidate for potential biomedical applications.

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Section: Resultsmentioning

confidence: 99%

Section: D Amentioning

confidence: 99%

Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe_1–xMn_xO₃ for Efficient Antioxidant Activity

Uzair,

Kanwal,

Khan

et al. 2023

ACS Omega

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On the magnetic and magnetoelectric coupling properties of lead-free (1 − x) Bi0.9La0.1FeO3/xLa0.7Sr0.3MnO3 (x = 0, 0.1, 0.2) composites at room temperature

Devi

Anand

Veena

et al. 2021

J Mater Sci: Mater Electron

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Structural, morphological, optical and dielectric investigations in cobalt doped bismuth ferrite nanoceramics prepared using the sol-gel citrate precursor method

Wani

Kundu

Ramaswamy

et al. 2020

Journal of Alloys and Compounds

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Effect of Mn substitution on structural and dielectric properties of bismuth ferrite

Cited by 14 publications

References 8 publications

Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe_1–xMn_xO₃ for Efficient Antioxidant Activity

Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe_1–xMn_xO₃ for Efficient Antioxidant Activity

On the magnetic and magnetoelectric coupling properties of lead-free (1 − x) Bi0.9La0.1FeO3/xLa0.7Sr0.3MnO3 (x = 0, 0.1, 0.2) composites at room temperature

Structural, morphological, optical and dielectric investigations in cobalt doped bismuth ferrite nanoceramics prepared using the sol-gel citrate precursor method

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Effect of Mn substitution on structural and dielectric properties of bismuth ferrite

Cited by 14 publications

References 8 publications

Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe1–xMnxO3 for Efficient Antioxidant Activity

Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe1–xMnxO3 for Efficient Antioxidant Activity

On the magnetic and magnetoelectric coupling properties of lead-free (1 − x) Bi0.9La0.1FeO3/xLa0.7Sr0.3MnO3 (x = 0, 0.1, 0.2) composites at room temperature

Structural, morphological, optical and dielectric investigations in cobalt doped bismuth ferrite nanoceramics prepared using the sol-gel citrate precursor method

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Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe_1–xMn_xO₃ for Efficient Antioxidant Activity

Effect of Mn Doped on Structural, Optical, and Dielectric Properties of BiFe_1–xMn_xO₃ for Efficient Antioxidant Activity