The process of polarization reversal in a SrBi2Ta2O9, (SBT) thin film capacitor produced by a metalorganic decomposition method was investigated. The switching time (100-600 ns) and the reversible polarization have been measured at different voltages in the range of 0-5 V. It was found that by annealing the SBT sample in AR atmosphere at 400°C, the switching times were significantly reduced. This indicates that oxygen vacancies in the film speed up nucleation and growth of new domains.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)