| 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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Macutkevic, Jan
Center for Physical Sciences and Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2023Multilayered Composites with Carbon Nanotubes for Electromagnetic Shielding Applicationcitations
- 2022Dielectric Properties of Hybrid Polyethylene Composites Containing Cobalt Nanoparticles and Carbon Nanotubescitations
- 2022Tannin-based resins for 3D printing of porous carbon architecturescitations
- 2022Electrical conductivity and dielectric relaxation in Ag1-xLixNbO3citations
- 2022Electrical Conductivity and Dielectric Relaxation in Ag1−xLixNbO3citations
- 2021Dielectric properties of PDMS composites filled with SrTiO 3 nanoparticlescitations
- 2021Fibers of Thermoplastic Copolyamides with Carbon Nanotubes for Electromagnetic Shielding Applicationscitations
- 2021Dielectric Relaxation Spectroscopy and Synergy Effects in Epoxy/MWCNT/Ni@C Compositescitations
- 2020Crossover from Ferroelectric to Relaxor Behavior in Ba1−xCaxTiO3 (x = 0.17) Systemcitations
- 2020Dielectric Relaxation in the Hybrid Epoxy/MWCNT/MnFe2O4 Compositescitations
- 2020Electrical percolation and electromagnetic properties of polydimethylsiloxane composites filled with Ag nanoparticles of different sizescitations
- 2020THz Spectroscopy as a Versatile Tool for Filler Distribution Diagnostics in Polymer Nanocompositescitations
- 2019Fine Tuning of Electrical Transport and Dielectric Properties of Epoxy/Carbon Nanotubes Composites via Magnesium Oxide Additivescitations
- 2019Electromagnetic Properties of Carbon Gelscitations
- 2019Broadband Dielectric Properties of Fe<sub>2</sub>O<sub>3</sub>·H<sub>2</sub>O Nanorods/Epoxy Resin Compositescitations
- 2019Electromagnetics of carbon: Nano versus microcitations
- 2019Broadband Dielectric Properties of Fe2O3·H2O Nanorods/Epoxy Resin Compositescitations
- 2019Dielectric Properties of Epoxy-Matrix Composites with Tungsten Disulfide Nanotubescitations
- 2018Size-dependent electrical and thermal properties of onion-like carbons / polyurethane compositescitations
- 2018Influence of carbon nanotube surface treatment on resistivity and low‐frequency noise characteristics of epoxy‐based compositescitations
- 2018Hot-melt adhesives based on co-polyamide and multiwalled carbon nanotubescitations
- 2015Ultrasonic and dielectric relaxations in PDMS/ZnO nanocompositecitations
- 2015Synergy effects in the electrical conductivity behavior of onion-like carbon and multiwalled carbon nanotubes compositescitations
- 2014Dielectric properties of graphite-based epoxy compositescitations
- 2010Terahertz sensing with carbon nanotube layers coated on silica fibers: Carrier transport versus nanoantenna effectscitations
Places of action
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article
Electrical Conductivity and Dielectric Relaxation in Ag1−xLixNbO3
Abstract
<jats:p>The broadband electrical properties of Ag1−xLixNbO3 (ALNx) ceramics (x ≤ 0.1) together with AgNbO3 (AN) crystals were studied over a wide temperature interval of 20–800 K. For ALNx with x ≤ 0.05, a very diffused ferroelectric phase transition was observed. The position of the dielectric permittivity maximum in this phase transition is strongly frequency-dependent and is described well by the Vogel–Fulcher law. The freezing temperature decreases when the lithium concentration increases. Below the ferroelectric phase transition temperature, the dielectric dispersion is mainly caused by ferroelectric domain dynamics. Moreover, for ALN3 and ALN5 ceramics at very low temperatures (below 100 K), behavior typical of dipolar glasses is observed. At higher temperatures (above 650 K for ALN5), electrical conductivity effects become important. The DC conductivity increases with temperature according to the Arhenius law and the activation energy is highest in the antiferroelectric phase. Moreover, the activation energy is strongly dependent on the lithium concentration and it is greatest when x = 0.02.</jats:p>