Dielectric and electrical study along with the evidences of small polaron tunnelling in Gd doped bismuth ferrite lead titanate composites

Sahu, Truptimayee; Behera, Banarji

doi:10.1007/s10854-018-8732-x

Cited by 16 publications

(1 citation statement)

References 36 publications

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“…The Complex Impedance Spectroscopy (CIS) is a non-destructive and effective technique to characterize intragranular and interfacial properties and also the interrelations between them. This technique is very useful to separate the contributions due to grain, grain boundary and interfaces and enable us to separate the real and imaginary components of complex electrical parameters to analyze the electrical response of polycrystalline materials [13].…”

Section: Of 12mentioning

confidence: 99%

Structure, Optical, and Dielectric Properties of Cu1-xAgxAlO2 Nanoparticles

Saleh¹,

Albarg²

2023

Preprint

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The solid-state technique was utilized to make a single phase of delafossite CuAlO2, along with 1%, 2%, 3% and 4% silver doped CuAlO2 samples in this study. The content of the samples was investigated using energy dispersive X-ray spectroscopy (EDS) equipped with a field emission scanning electron microscope (FE-SEM). The polycrystalline nature of all of the analyzed cases was confirmed by structural analyses utilizing an X-ray diffraction (XRD) pattern with a simple typical peak of CAO rhombohedral phase. Raman, FT-IR and UV–Vis spectroscopy were used to study the structural, and optical energy band gap (Eg) of Ag doped CuAlO2 nanoparticles. The Kubelka–Munk function was used to calculate the optical band gap of ACAO alloys using diffuse reflectance spectra, and it altered as the Ag ion concentration increased. A. c. impedance spectroscopy was used to investigate the dielectric characteristics of Ag doped CuAlO2 nanoparticles.

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Section: Of 12mentioning

confidence: 99%

Structure, Optical, and Dielectric Properties of Cu1-xAgxAlO2 Nanoparticles

Saleh¹,

Albarg²

2023

Preprint

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Ferroelectric and electrical properties of LiNaWO₄ compound

Krimi

Karoui

Zghal

et al. 2019

Applied Organom Chemis

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The aim of this work is to elaborate the LiNaWO4 compound, using the solid state method, then to characterize it using an XR study which confirms that it crystallizes in the orthorhombic system with P222 as space group and with the lattice parameters a = 12.82 Å, b = 17.49 Å, c = 7.25 Å and α = β = γ = 90°. The differential scanning calorimetry (DSC) shows two endothermic peaks at T1 = 388 K and T2 = 500 K. The first peak is detected by the dielectric study, attributed to a phase transition from a ferroelectric phase to a paraelectric one, while the second peak indicates the presence of a phase transition, confirmed later by the result of the electrical study. All modes pertaining to vibrations of WO42− tetrahedral appear in the Raman spectrum. Moreover, its impedance response is modeled by a single cell formed by a parallel combination of R//C//CPE, i.e. the response of our compound is that of the grain. The variation of the σg and σdc, as a function of temperature, confirms the phase transition observed in the calorimetric study at T2. The conduction mechanism in the two phases indicates that the first phase (I) is described by the CBH model and the second phase by the OLPT model.

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