Stochastic multistep polarization switching in ferroelectrics

Genenko, Y.A. and Khachaturyan, R. and Schultheiß, J. and Ossipov, A. and Daniels, J.E. and Koruza, J. (2018) Stochastic multistep polarization switching in ferroelectrics. Physical Review B, 97 (14). p. 144101. ISSN 2469-9969

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Abstract

Consecutive stochastic 90° polarization switching events, clearly resolved in recent experiments, are described by a nucleation and growth multistep model. It extends the classical Kolmogorov-Avrami-Ishibashi approach and includes possible consecutive 90°- and parallel 180° switching events. The model predicts the results of simultaneous time-resolved macroscopic measurements of polarization and strain, performed on a tetragonal Pb(Zr,Ti)O3 ceramic in a wide range of electric fields over a time domain of seven orders of magnitude. It allows the determination of the fractions of individual switching processes, their characteristic switching times, activation fields, and respective Avrami indices.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Mathematical Sciences
Identification Number: 10.1103/PhysRevB.97.144101
Depositing User: Ossipov, Alexander
Date Deposited: 16 Apr 2018 13:50
Last Modified: 17 Apr 2018 14:46
URI: http://eprints.nottingham.ac.uk/id/eprint/51159

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