Abstract
A stochastic model for polarization switching in tetragonal ferroelectric ceramics is introduced, which includes sequential 90°- and parallel 180°-switching processes and accounts for the dispersion of characteristic switching times due to a nonuniform spatial distribution of the applied field. It presents merging of the recent multistep stochastic mechanism with the earlier nucleation limited switching and inhomogeneous field mechanism models. The model provides a much better description of simultaneous polarization and strain responses over a wide time window and a deeper insight into the microscopic switching mechanisms, as is exemplarily shown by comparison with measurements on lead zirconate titanate.
Originalsprache | englisch |
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Aufsatznummer | 222902 |
Fachzeitschrift | Applied Physics Letters |
Jahrgang | 114 |
Ausgabenummer | 22 |
DOIs | |
Publikationsstatus | Veröffentlicht - 3 Juni 2019 |
Extern publiziert | Ja |
ASJC Scopus subject areas
- Physik und Astronomie (sonstige)