Structural, morphological, and dielectric properties of lead-free BaFe1/2Nb1/2O3 based ceramics: toward a deeper understanding of the dielectric mechanisms

Amara, Manel; Hellara, J.; Bourguiba, Fayçal; Dhahri, J.; Bchetnia, A.; Taïbî, K.; Hlil, E. K.

doi:10.1007/s10854-021-07541-7

Cited by 5 publications

(2 citation statements)

References 39 publications

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“…The interfacial polarization of these compounds can be correlated to the heterogeneous morphologies of the grains and grain boundaries. As a result, a hopping mechanism controls the polarization process in our compound [71] …”

Section: Resultsmentioning

confidence: 97%

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Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO₄

Miladi,

Gzaiel,

Azaza

et al. 2024

Eur J Inorg Chem

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The development of multifunctional materials is an exceptional research area, which is aimed at enhancing the versatility of materials according to their wide fields of application. Special interest was devoted here to the orthophosphate compound, in particular, the olivine NaMnPO4 material. This compound was successfully synthesized by a solid‐state method and characterized using various techniques. Preliminary room‐temperature structural analysis evidences the sample formation in the orthorhombic structure and its phase purity. The material’s morphology, analyzed by scanning electron microscopy (SEM), is identified by a spherical grain size distribution. The average grain size of the sample was estimated to be around 420 nm. Moreover, the optical investigation of UV‐visible spectroscopy has revealed that the band gap for our sample is (Eg = 2.28 eV), which shows that our compound is a potential candidate for optoelectronic applications. The electrical behavior study's main results confirm the ferroelectric character of the sample and support the aim of deepening the knowledge of the material according to its thermally stimulated conduction processes through impedance spectroscopy. Electrical studies revealed the dominant transport processes across various temperature and frequency ranges, leading to the NSPT model. The frequency dependency relates to frequency‐dispersive dielectric spectra, conduction mechanisms, and relaxation phenomena.

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Section: Resultsmentioning

confidence: 97%

“…As a result, a hopping mechanism controls the polarization process in our compound. [71] Figure 16 depicts the trends of the dielectric constant under temperature treatment at various frequencies. At low frequencies, the graph indicates that dielectric constants remain constant.…”

Section: Permitivity Studymentioning

confidence: 99%

Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO₄

Miladi,

Gzaiel,

Azaza

et al. 2024

Eur J Inorg Chem

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show abstract

Comments on the erroneous diffraction structure analysis presented in the paper on BaFe0.5Nb0.5O3:Mg ceramics by R. Chakravarty et al., and published in J. Mater. Sci.: Mater. Electron. (2023) 34:1452

Tomaszewski

2024

J Mater Sci: Mater Electron

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Eu-doped Mg–Ni ferrites: a reliable strategy to enhance dielectric properties for high-frequency applications

Bouzidi,

Rhimi,

Dhahri

et al. 2024

J Mater Sci: Mater Electron

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Structural, morphological, and dielectric properties of lead-free BaFe1/2Nb1/2O3 based ceramics: toward a deeper understanding of the dielectric mechanisms

Cited by 5 publications

References 39 publications

Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO₄

Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO₄

Comments on the erroneous diffraction structure analysis presented in the paper on BaFe0.5Nb0.5O3:Mg ceramics by R. Chakravarty et al., and published in J. Mater. Sci.: Mater. Electron. (2023) 34:1452

Eu-doped Mg–Ni ferrites: a reliable strategy to enhance dielectric properties for high-frequency applications

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Structural, morphological, and dielectric properties of lead-free BaFe1/2Nb1/2O3 based ceramics: toward a deeper understanding of the dielectric mechanisms

Cited by 5 publications

References 39 publications

Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO4

Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO4

Comments on the erroneous diffraction structure analysis presented in the paper on BaFe0.5Nb0.5O3:Mg ceramics by R. Chakravarty et al., and published in J. Mater. Sci.: Mater. Electron. (2023) 34:1452

Eu-doped Mg–Ni ferrites: a reliable strategy to enhance dielectric properties for high-frequency applications

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Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO₄

Investigation of Morphology, Optical and Electronic Ac Conduction of the Olivine Manganite Compound: NaMnPO₄