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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Elsevier
2025-04-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822824002661 |
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| author | Fareenpoornima R S. Deborah G. Parthipan |
| author_facet | Fareenpoornima R S. Deborah G. Parthipan |
| author_sort | Fareenpoornima R |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-64476d5cfbee43eeb3293a26097fcf9b |
| institution | DOAJ |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-64476d5cfbee43eeb3293a26097fcf9b2025-08-20T03:14:32ZengElsevierNext Materials2949-82282025-04-01710036910.1016/j.nxmate.2024.100369First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticlesFareenpoornima R0S. Deborah1G. Parthipan2Department of Physics, Veltech Multitech Dr Rangarajan Dr Sakunthala Engineering college, Chennai 600062, India; Corresponding author.Department of Electronics and Communication Engineering, Dr MGR educational and research institute, Chennai 600095, IndiaDepartment of Physics, Veltech Multitech Dr Rangarajan Dr Sakunthala Engineering college, Chennai 600062, IndiaIn 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.http://www.sciencedirect.com/science/article/pii/S2949822824002661Activation energyLong-range motionNano-capacitorElectrode effectRelaxation |
| spellingShingle | Fareenpoornima R S. Deborah G. Parthipan First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles Next Materials Activation energy Long-range motion Nano-capacitor Electrode effect Relaxation |
| title | First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles |
| title_full | First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles |
| title_fullStr | First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles |
| title_full_unstemmed | First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles |
| title_short | First principal study of conduction mechanism of Mg doped BaCoO2.6 nanoparticles |
| title_sort | first principal study of conduction mechanism of mg doped bacoo2 6 nanoparticles |
| topic | Activation energy Long-range motion Nano-capacitor Electrode effect Relaxation |
| url | http://www.sciencedirect.com/science/article/pii/S2949822824002661 |
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