Impedance spectroscopy of (Pb0.98La0.02)(Zr0.95Ti0.05)O3(PLZT-2/95/5) ceramics above ferroelectric phase transition temperatures

Park, Jong-Ho; Choi, Byung Chun

doi:10.1016/j.jcrysgro.2004.11.391

Cited by 17 publications

(5 citation statements)

References 25 publications

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“…Whenever there is a transition from ferroelectric to paraelectric phase, there is a decrease in the barrier height. This leads to a decrease in the activation energy, which results in decrease of the both grain and grain boundary resistance …”

Section: Resultsmentioning

confidence: 99%

Studies of Phase Transitions and Magnetoelectric Coupling in PFN-CZFO Multiferroic Composites

et al. 2016

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We report studies of the ferroelectric and magnetic phase transitions of (1 – x)Pb(Fe0.5Nb0.5)O3 – xCo0.65Zn0.35Fe2O4 (x = 0.2) composite with emphasis upon the nature of magnetoelectric coupling at room temperature. The presence of all cationic elements with their required stoichiometry have been confirmed by SEM and XPS studies. The composite shows well-saturated ferroelectric and ferromagnetic (multiferroic) behavior at room temperature. A ferroelectric-paraelectric phase transition has been confirmed from the temperature dependent dielectric spectra along with DSC and Raman spectroscopic studies. Antiferromagnetic, ferromagnetic, and relaxor paramagnetic states have been observed in this composite. This composite shows strong bulk biquadratic magnetoelectric coupling at room temperature, which can be useful for potential multifunctional device applications.

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Section: Resultsmentioning

confidence: 99%

Studies of Phase Transitions and Magnetoelectric Coupling in PFN-CZFO Multiferroic Composites

et al. 2016

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“…An n value less than 1 indicates in general certain electric property heterogeneity within the material [75]. An n value less than 1 indicates in general certain electric property heterogeneity within the material [75].…”

Section: Equivalent Circuitmentioning

confidence: 99%

Ionic hopping conductivity in potential batteries separator based on natural rubber–nanocellulose green nanocomposites

Ladhar

Arous

Kaddami

et al. 2015

Journal of Molecular Liquids

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“…The CPE describes an ideal capacitor with a capacitance C for β = 1 and an ideal resistor R for β = 0. A β value less than 1 indicates in general certain electric property heterogeneity within the material [54]. Table 3 shows the values of different parameters of two equivalent circuits.…”

Section: Resultsmentioning

confidence: 99%

Preparation, Properties and Applications of the Hybrid Organic/Inorganic Nanocomposite Based on Nanoporous Carbon Matrix

Mansour

Djeridi

Mır

2021

J Inorg Organomet Polym

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Nanoporous carbon matrix was prepared by the sol-gel process from pyrogallol-formaldehyde (PF) mixtures in water using picric acid as catalyst. For the second sample, nickel oxide nanoparticles were added in the PF matrix to get a PF/NiO hybrid nanocomposite. The samples were heat treated at the pyrolysis temperature of 650 °C for two hours. The obtained materials have been characterized by different techniques such as: X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), differential thermalanalysis (DTA),nitrogen adsorption-desorption isotherms, voltage-current characteristics, electrochemical measurementsand UV-Vis-IR absorption. The XRD analysis shows that PF matrix is amorphous while PF/NiO nanocomposite exhibited a metallic phase of nickel. The SEM and TEM images indicated the presence of nickel particles in the PF/NiO nanocomposite which are dispersed randomly in the carbon matrix. The adsorption-desorption of nitrogen revealed that the PF matrix is microporous and the PF/NiO nanocomposite is mesoporous. The adsorption capacities of carbon dioxide (CO2) and methane (CH4) show that the PF matrix has the highest adsorption at low pressures and the PF/NiO nanocomposite tends to adsorb gasesbetter at high pressure. The V(I) characteristics showed that the PF/NiO nanocomposite can be considered as a smart material. Indeed, the characteristic behavior can be adjusted according to the maximum applied current. Electrochemical measurements have shown that the PF/NiO nanocomposite is very promising for the detection of non-enzymatic glucose. The absorption spectra showed that the addition of the NiO nanoparticles increased the disorder.The obtained materials are promoters for various applications such as gas storage, negatronic devices and glucose sensor.

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Impedance spectroscopy of (Pb0.98La0.02)(Zr0.95Ti0.05)O3(PLZT-2/95/5) ceramics above ferroelectric phase transition temperatures

Cited by 17 publications

References 25 publications

Studies of Phase Transitions and Magnetoelectric Coupling in PFN-CZFO Multiferroic Composites

Studies of Phase Transitions and Magnetoelectric Coupling in PFN-CZFO Multiferroic Composites

Ionic hopping conductivity in potential batteries separator based on natural rubber–nanocellulose green nanocomposites

Preparation, Properties and Applications of the Hybrid Organic/Inorganic Nanocomposite Based on Nanoporous Carbon Matrix

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