About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
| Presentation Title |
Anomalous Dielectric Behavior and Domain Reorientation/Switching in the (Bi0.5Na0.5)0.92Ba0.08TiO3 Ceramic System Below a Critical Temperature |
| Author(s) |
Aimé Peláiz-Barranco, Yon Leandro Leyvas-López, Alejandro Carlos Iglesias-Jaime, Mohammad Bakhtbidar, Andreas Ruediger, Tongqing Yang, Marcos Aparecido dos Santos Mariano, Tawan H. T. Rosa, Jose de los Santos Guerra |
| On-Site Speaker (Planned) |
Jose de los Santos Guerra |
| Abstract Scope |
The dielectric and ferroelectric behaviors were analyzed in the (Bi0.5Na0.5)0.92Ba0.08TiO3 ceramic system below the depolarization temperature, Td. The structural characteristics through the Raman spectroscopy were studied in the same temperature range. The dielectric analysis revealed a complex behavior characterized by an anomalous region in the 50–70 °C temperature range, distinct from the primary ferroelectric and antiferroelectric transitions. This anomaly has been attributed to the changes in domain reorientation and switching due to the increasing electrical stabilization of the antiferroelectric phase, which is confirmed by variations in the remnant polarization, recovered energy density, and efficiency. The results suggest that the material’s performance can be tailored by operating within this specific temperature range, opening up interesting possibilities for energy storage and other applications where the control over the switching between ferroelectric and antiferroelectric phases is crucial. The authors thank to CNPq (309494/2022-2 and 408662/2023-9), FAPEMIG (APQ-02875-18) and CAPES for the financial support. |