TU Darmstadt / ULB / TUbiblio

Stochastic model of dispersive multi-step polarization switching in ferroelectrics due to spatial electric field distribution

Khachaturyan, R. and Schultheiß, Jan and Koruza, Jurij and Genenko, Yuri A. (2019):
Stochastic model of dispersive multi-step polarization switching in ferroelectrics due to spatial electric field distribution.
In: Applied Physics Letters, 114 (22), pp. 222902(1)-222902(5). AIP Publishing, ISSN 0003-6951,
DOI: 10.1063/1.5099235,
[Article]

Abstract

A stochastic model for polarization switching in tetragonal ferroelectric ceramics is introduced, which includes sequential 90°- and parallel180°-switching processes and accounts for the dispersion of characteristic switching times due to a nonuniform spatial distribution of theapplied field. It presents merging of the recent multistep stochastic mechanism with the earlier nucleation limited switching and inhomoge-neous field mechanism models. The model provides a much better description of simultaneous polarization and strain responses over a widetime window and a deeper insight into the microscopic switching mechanisms, as is exemplarily shown by comparison with measurementson lead zirconate titanate.

Item Type: Article
Erschienen: 2019
Creators: Khachaturyan, R. and Schultheiß, Jan and Koruza, Jurij and Genenko, Yuri A.
Title: Stochastic model of dispersive multi-step polarization switching in ferroelectrics due to spatial electric field distribution
Language: English
Abstract:

A stochastic model for polarization switching in tetragonal ferroelectric ceramics is introduced, which includes sequential 90°- and parallel180°-switching processes and accounts for the dispersion of characteristic switching times due to a nonuniform spatial distribution of theapplied field. It presents merging of the recent multistep stochastic mechanism with the earlier nucleation limited switching and inhomoge-neous field mechanism models. The model provides a much better description of simultaneous polarization and strain responses over a widetime window and a deeper insight into the microscopic switching mechanisms, as is exemplarily shown by comparison with measurementson lead zirconate titanate.

Journal or Publication Title: Applied Physics Letters
Journal volume: 114
Number: 22
Publisher: AIP Publishing
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
Date Deposited: 25 Sep 2019 05:30
DOI: 10.1063/1.5099235
Official URL: https://aip.scitation.org/doi/10.1063/1.5099235
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details