Stochastic multistep polarization switching in ferroelectrics

Y. A. Genenko, R. Khachaturyan, J. Schultheiß, A. Ossipov, J. E. Daniels, and J. Koruza
Phys. Rev. B 97, 144101 – Published 4 April 2018

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.

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  • Received 9 January 2018

DOI:https://doi.org/10.1103/PhysRevB.97.144101

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Y. A. Genenko1,*, R. Khachaturyan1, J. Schultheiß2, A. Ossipov3, J. E. Daniels4, and J. Koruza2

  • 1Institute of Materials Science, Technische Universität Darmstadt, Otto-Berndt-Straße 3, 64287 Darmstadt, Germany
  • 2Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Straße 2, 64287 Darmstadt, Germany
  • 3School of Mathematical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
  • 4School of Materials Science and Engineering, UNSW Sydney, NSW, 2052, Australia

  • *Corresponding author: genenko@mm.tu-darmstadt.de

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Issue

Vol. 97, Iss. 14 — 1 April 2018

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