| Autor: |
Shukla, Jyoti, Saxena, Pallavi, Rai, Virendra Nath, Mishra, Ashutosh |
| Zdroj: |
Journal of Materials Science: Materials in Electronics; Sep2023, Vol. 34 Issue 25, p1-12, 12p |
| Abstrakt: |
This study builds upon our previous research, which focused on investigating the effects of Ba and Zr ions doping on the structural, optical, and dielectric properties of the YMnO3 manganite system at room temperature. This study examines the influence of Ba and Zr ions on the dielectric and transport properties of YMnO3 (Y0.95Ba0.05Mn0.95Zr0.05O3) ceramic sample with temperature. The formation of the sample phase was verified by FT-IR spectroscopy. XPS study reveals the oxidation state of Mn-ion as well as the oxygen vacancies that exist in the prepared sample. The temperature-dependent dielectric constant of the ceramic sample indicates dielectric anomalies at ~ 562 K and ~ 572 K for 1 kHz and 100 kHz, suggesting the relaxation of doubly ionized oxygen vacancies. Jonscher's power law is used to investigate the variation of AC conductivity with frequency at different temperatures, while the transport phenomenon and conduction mechanism are explained through the variation of electrical modulus with frequency. A complex impedance study of the prepared sample has been done to understand its electrical behavior. The P-E hysteresis loop analysis of the prepared sample showed its improved ferroelectric behavior. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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