Multistep stochastic mechanism of polarization reversal in rhombohedral ferroelectrics

Y. A. Genenko*, R. Khachaturyan, I. S. Vorotiahin, J. Schultheiß, J. E. Daniels, A. Grünebohm, J. Koruza

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A stochastic model for the field-driven polarization reversal in rhombohedral ferroelectrics is developed, providing a description of their temporal electromechanical response. Application of the model to simultaneous measurements of polarization and strain kinetics in a rhombohedral Pb(Zr,Ti)O3 ceramic over a wide time window allows the identification of preferable switching paths, fractions of individual switching processes, and their activation fields. In conjunction, the phenomenological Landau-Ginzburg-Devonshire theory is used to analyze the impact of an external field and stress on switching barriers, showing that residual mechanical stress may promote the fast switching.

Original languageEnglish
Article number064107
JournalPhysical Review B
Issue number6
Publication statusPublished - 1 Aug 2020
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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