Structural and Mössbauer Studies of Sr1.5Ca1.5Fe2.25Mo0.75O9−δ and Sr1.92Ca1.08Fe2.04W0.96O9−δ Double Perovskites

Hachmi, Abdelhadi El; Manoun, Bouchaib; Tamraoui, Youssef; Louihi, Said; Bih, L.; Sajieddine, M.; Lazor, Peter

doi:10.1134/s0022476620060049

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Similar behavior has been reported for iron in other ferrate DP structures which also have the monoclinic structure with an anti-site effect of cations between B and B′ sites, such as ALaFeTiO 6 (A = Ca, Sr, Ba) double perovskite oxide. [53][54][55] Therefore, the obtained results from Mössbauer spectroscopy are consistent with the Rietveld refinement study.…”

Section: Fe Mössbauer Spectroscopysupporting

confidence: 88%

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr₂(Fe_1−xNi_x)TeO₆

Zaraq

Gregory

Orayech³

et al. 2022

Dalton Trans.

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Section: Fe Mössbauer Spectroscopysupporting

confidence: 88%

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr₂(Fe_1−xNi_x)TeO₆

Zaraq

Gregory

Orayech³

et al. 2022

Dalton Trans.

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Synthesis, structural and optical properties of perovskites-type: Sr3Fe2+Mo1−O9−3/2 (x = 0.30, 0.45, 0.60, 0.75 and 1.00)

et al. 2021

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Complex dielectric, electric modulus, impedance, and optical conductivity of Sr_3−xPb_xFe₂TeO₉ (x = 1.50, 1.88 and 2.17)

Hachmi

Manoun

2023

International Journal of Materials Research

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Sr3−x Pb x Fe2TeO9 (x = 1.50, 1.88 and 2.17) were synthesized in polycrystalline form via the solid-state reaction route in air, and were studied at room temperature using powder X-ray diffraction and ultraviolet visible spectroscopy techniques. The crystal structures were resolved by the Rietveld refinement method; x = 1.50 and 1.88 adopt a tetragonal phase (space group I4/mmm) while x = 2.17 adopts a hexagonal phase (space group R 3 ̄ $\bar{3}$ m). The direct bandgap energy (E g) of ∼1.89 eV for (x = 1.50), ∼1.87 eV for (x = 1.88) and ∼1.74 eV for (x = 2.17) was estimated from the Tauc plots of (αhʋ)2 versus photon energy. The Urbach energy (E U) was determined from the plots of logarithmic absorption coefficient versus hυ. Plots of the incident photon energy dependence of optical parameters such as refractive index, extinction coefficient, real and imaginary parts of the dielectric function, dielectric loss, real and imaginary parts of the complex optical conductivity, linear and nonlinear optical susceptibilities, real and imaginary parts of the electric modulus, real and imaginary parts of the impedance were obtained by means of ultraviolet visible spectrophotometer experiments. Additionally, the estimated values of the single oscillator energy, dispersion energy, static refractive index and high-frequency dielectric constant were obtained from the linear portion of the (n 2 − 1)−1 versus (hυ)2 plots using the Wemple–DiDomenico model.

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Structural and Mössbauer Studies of Sr1.5Ca1.5Fe2.25Mo0.75O9−δ and Sr1.92Ca1.08Fe2.04W0.96O9−δ Double Perovskites

Cited by 3 publications

References 22 publications

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr₂(Fe_1−xNi_x)TeO₆

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr₂(Fe_1−xNi_x)TeO₆

Synthesis, structural and optical properties of perovskites-type: Sr3Fe2+Mo1−O9−3/2 (x = 0.30, 0.45, 0.60, 0.75 and 1.00)

Complex dielectric, electric modulus, impedance, and optical conductivity of Sr_3−xPb_xFe₂TeO₉ (x = 1.50, 1.88 and 2.17)

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Structural and Mössbauer Studies of Sr1.5Ca1.5Fe2.25Mo0.75O9−δ and Sr1.92Ca1.08Fe2.04W0.96O9−δ Double Perovskites

Cited by 3 publications

References 22 publications

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr2(Fe1−xNix)TeO6

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr2(Fe1−xNix)TeO6

Synthesis, structural and optical properties of perovskites-type: Sr3Fe2+Mo1−O9−3/2 (x = 0.30, 0.45, 0.60, 0.75 and 1.00)

Complex dielectric, electric modulus, impedance, and optical conductivity of Sr3−x Pb x Fe2TeO9 (x = 1.50, 1.88 and 2.17)

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Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr₂(Fe_1−xNi_x)TeO₆

Effects of iron substitution and anti-site disorder on crystal structures, vibrational, optical and magnetic properties of double perovskites Sr₂(Fe_1−xNi_x)TeO₆

Complex dielectric, electric modulus, impedance, and optical conductivity of Sr_3−xPb_xFe₂TeO₉ (x = 1.50, 1.88 and 2.17)