First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles
In this study, Mg-doped BaCoO2.6 (Ba1-xMgxCoO2.6) (x = 0.1 – 0.4) compounds were synthesized via Sol-gel method and their frequency and temperature-depended electrical properties were investigated in the temperature range 37°C–200°C using an impedance analyzer. Structural and chemical analysis of Mg...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-04-01
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| Series: | Next Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822824002661 |
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| Summary: | In this study, Mg-doped BaCoO2.6 (Ba1-xMgxCoO2.6) (x = 0.1 – 0.4) compounds were synthesized via Sol-gel method and their frequency and temperature-depended electrical properties were investigated in the temperature range 37°C–200°C using an impedance analyzer. Structural and chemical analysis of Mg-doped BaCoO2.6 were carried out via scanning electron microscope (SEM-EDAX) and Fourier transform infrared spectroscopy (FTIR). The imaginary part of impedance as a function of frequency shows Debye-like relaxation. Impedance data is presented in the Nyquist plot, and the argand diagram with the grain, grain-boundary, and electrode contributions is estimated. The activation energies for the ac conductivity decrease with the frequency rise. The shifting of modulus peaks to low-frequency region suggests long-range motion and the presence of two peaks at 473 K to both long and short-range motion with more than one relaxation time. Our research being the first to report on dielectric studies, we suggest the sample’s use as serial nano-capacitors and in optical, microwave devices. |
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| ISSN: | 2949-8228 |