| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Niranjan, Manish K.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Surface electronic structure, relaxations and thermodynamic energies of (100), (110) and (111) surfaces of Mg2Si: A first-principles theoretical study
- 2019Ferroelectric superlattices at nano scale: A Theoretical Investigation
- 2018Optimum discharge energy density at room temperature in relaxor K 1/2 Bi 1/2 TiO 3 for green energy harvesting
- 2017Phase stability and elastic properties of β Ti-Nb-X (X=Zr, Sn) alloys: An ab-initio density functional studycitations
- 2016Synthesis And Characterization of ferroelectric material (Na0.5Bi0.5)TiO3- Eu2O3
- 2015Microstructural studies of AgNbO3 ceramic by using complex impedance spectroscopy
- 2015Theoretical Investigation of Crystal and Electronic Structure of piezoelectric AgNb0.5Ta0.5O3
- 2012First principles study of structural, electronic and elastic properties of cubic and orthorhombic RhSi
- 2011Metallic and Insulating Oxide Interfaces Controlled by Electronic Correlations
- 2010Suppression of Octahedral Tilts and Associated Changes in Electronic Properties at Epitaxial Oxide Heterostructure Interfaces
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article
Optimum discharge energy density at room temperature in relaxor K 1/2 Bi 1/2 TiO 3 for green energy harvesting
Abstract
Lead free polycrystalline K1/2Bi1/2TiO3 (KBT) was prepared by solid state reaction method. Experimentally observed frequencies of Raman modes signified its tetragonal phase and matched reasonably well with theoretically calculated values. The relaxor nature of this material was observed in the temperature dependent real part of permittivity and dielectric loss curve. The value of the degree of diffusiveness was estimated from the modified Curie-Weiss law, which is 1.99, confirmed its relaxor behavior. The validation of this behavior was justified by the Vogel-Fülcher relation. The shoulder in the imaginary part of the modulus (M") and permittivity (Ԑ") spectra revealed the presence of polar nano regions (PNRs). The evidence of PNRs was detectable above freezing temperature which became weaker when the temperature exceeded Tm (temperature at the maximum of dielectric constant). Electric field induced polarization and strain curve showed the stabilization of long range ferroelectric order of the specimen at room temperature. Moreover, we obtained the discharge energy density and strain of 0.46 J/cm3 and 0.12%, respectively, at the maximum application of the electric field of 115 kV/cm at room temperature.