Dielectric and impedance spectroscopy characterizations of CuO added (Na0.5Bi0.5)0.94Ba0.06TiO3 lead-free piezoelectric ceramics

Zidi, Naima; Chaouchi, Ahcène; d’Astorg, Sophie; Rguiti, Mohamed; Courtois, Christian

doi:10.1016/j.jallcom.2013.12.167

Cited by 64 publications

(15 citation statements)

References 39 publications

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“…These relations offer wide scope for a graphical analysis of the various parameters under different conditions of temperature or frequency [25]. Fig.…”

Section: Dielectric Propertiesmentioning

confidence: 99%

“…At low and high frequency regions, where the conductivity is constant, charge carrier transport takes place on infinite paths. The electrical conduction mechanism can be explained in terms of the electron hopping model [25]. Indeed, for the frequency region where the conductivity increases, the transport phenomenon is dominated by charge carrier hopping in finite clusters.…”

Section: Dielectric Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

Madhi

Meddeb

Bouzid

et al. 2015

Applied Surface Science

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“…These relations offer wide scope for a graphical analysis of the various parameters under different conditions of temperature or frequency [25]. Fig.…”

Section: Dielectric Propertiesmentioning

confidence: 99%

Section: Dielectric Propertiesmentioning

confidence: 99%

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

Madhi

Meddeb

Bouzid

et al. 2015

Applied Surface Science

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“…This nature of electric modulus divulges that relaxation phenomenon does not exist for the Ho 3þ substituted CFO samples and the loss accompanying with this relaxation phenomenon is also reduced. [47] This low loss is possibly due to the presence of the relaxation peaks in the low frequency region and contributes to the material to conduct poorly and possess low dielectric loss which makes CFHO suitable for electromagnetic absorbing devices. Figure 6 presents the variation of real part of impedance (Z 0 ) as a function of frequency at different selected temperatures.…”

Section: Complex Impedance Spectroscopymentioning

confidence: 99%

DC Electrical Resistivity, Dielectric, and Magnetic Studies of Rare‐Earth (Ho³⁺) Substituted Nano‐Sized CoFe₂O₄

Routray

Saha

Behera

2019

Physica Status Solidi (b)

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The effect of Fe substitution by rare‐earth (Holmium; Ho3+) ions in CoFe2O4 (CFO) prepared by glycine nitrate process is investigated from electrical, dielectric, magnetic, and Mössbauer perspectives. The anticipated spinel cubic phase structure is confirmed by X‐ray diffractometry and Fourier transform infrared (FTIR) analysis which support the presence of a secondary phase of HoFe2O3 at higher Ho content. Field emission scanning electron microscope (FESEM) and transmission electron microscopic (TEM) micrographs confirmed that the incorporation of Ho3+ significantly reduced the grain size of the samples from 50 nm to 20 nm. The complex impedance and modulus spectroscopy are investigated as a function of frequency in the regime of 102–106Hz in the temperature range of 30–300 °C. The conduction mechanism is attributed to the hopping of both electrons and holes. Activation energies (Ea) obtained from the Arrhenius plots of the grain and the grain boundary conductions are ascribed to the hopping of charge carriers. Electrical modulus results specify the existence of the non‐Debye type of dielectric relaxation. A massive reduction in loss factor is successfully achieved. Room temperature magnetization measurements indicate a reduction in saturation magnetization and coercivity (hysteresis losses) with increasing Ho3+ content, which entails these materials to be used for magnetic data storage and magneto recording devices.

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“…In this region of 2θ angular position, we notice the existence of a split peak: one at a lower degree and the other at a higher degree, which represent the hexagonal structure and the cubic double structure, respectively (see the inset of figure 1). The relative amounts of cubic double and hexagonal phases were determined from XRD patterns of the sample by measuring the relative intensities of the (220) major cubic double peak I cub and the (110) major hexagonal peak I hex by the following quantitative equations [17]:…”

Section: Structural Studymentioning

confidence: 99%

Structural, optical spectroscopy, optical conductivity and dielectric properties of BaTi0.5(Fe0.33W0.17)O3 perovskite ceramic

et al. 2016

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Fe and W co-substituted BaTiO 3 perovskite ceramics, compositional formula BaTi 0.5 (Fe 0.33 W 0.17)O 3 , were synthesized by the standard solid-state reaction method and studied by X-ray diffraction, scanning electron microscopy and spectroscopy ellipsometry. The prepared sample remains as double phases with the perovskite structure. The structure refinement of BaTi 0.5 (Fe 0.33 W 0.17)O 3 sample was performed in the cubic double and hexagonal setting of the Fm3m and P6 3 /mmc space groups. Spectral dependence of optical parameters; real and imaginary parts of the dielectric function, refractive index, extinction coefficient and absorption coefficient were carried out in the range between 1.4 and 4.96 eV by using the ellipsometry experiments. Direct bandgap energy of 4.36 eV was found from the analysis of absorption coefficient vs. photon energy. In addition, the oscillator energy, dispersion energy and zero-frequency refractive index values were found from the analysis of the experimental data using Wemple-DiDomenico single-effective-oscillator model.

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Dielectric and impedance spectroscopy characterizations of CuO added (Na0.5Bi0.5)0.94Ba0.06TiO3 lead-free piezoelectric ceramics

Cited by 64 publications

References 39 publications

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

DC Electrical Resistivity, Dielectric, and Magnetic Studies of Rare‐Earth (Ho³⁺) Substituted Nano‐Sized CoFe₂O₄

Structural, optical spectroscopy, optical conductivity and dielectric properties of BaTi0.5(Fe0.33W0.17)O3 perovskite ceramic

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Dielectric and impedance spectroscopy characterizations of CuO added (Na0.5Bi0.5)0.94Ba0.06TiO3 lead-free piezoelectric ceramics

Cited by 64 publications

References 39 publications

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

Effect of temperature and NO 2 surface adsorption on electrical properties of screen printed ITO thin film

DC Electrical Resistivity, Dielectric, and Magnetic Studies of Rare‐Earth (Ho3+) Substituted Nano‐Sized CoFe2O4

Structural, optical spectroscopy, optical conductivity and dielectric properties of BaTi0.5(Fe0.33W0.17)O3 perovskite ceramic

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Product

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DC Electrical Resistivity, Dielectric, and Magnetic Studies of Rare‐Earth (Ho³⁺) Substituted Nano‐Sized CoFe₂O₄