Charge properties of Bi-rich strontium bismuth tantalate thin films

Citation
M. Tanaka et al., Charge properties of Bi-rich strontium bismuth tantalate thin films, JPN J A P 1, 39(9B), 2000, pp. 5472-5475
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Volume
39
Issue
9B
Year of publication
2000
Pages
5472 - 5475
Database
ISI
SICI code
Abstract
The thermal behavior of charge properties and the polarization-retention of a Sr0.8Bi2.2Ta2O9 thin film were investigated in a range from room tempera ture to 558 K. The anomaly caused by the thermally stimulated space charge was observed. The anomaly started at about 425 K and showed a peak at about 525 K. However, the thermal behavior of the charge properties of the film in this temperature range is explained as being in a ferroelectric phase ac cording to the Landau theory.