Stochastic multistep polarization switching in ferroelectrics
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 mod...
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| Veröffentlicht in: | Physical review. B 2018-04, Vol.97 (14), Article 144101 |
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| container_title | Physical review. B |
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| creator | Genenko, Y. A. Khachaturyan, R. Schultheiß, J. Ossipov, A. Daniels, J. E. Koruza, J. |
| description | 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. |
| doi_str_mv | 10.1103/PhysRevB.97.144101 |
| format | Article |
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A. ; Khachaturyan, R. ; Schultheiß, J. ; Ossipov, A. ; Daniels, J. E. ; Koruza, J.</creator><creatorcontrib>Genenko, Y. A. ; Khachaturyan, R. ; Schultheiß, J. ; Ossipov, A. ; Daniels, J. E. ; Koruza, J.</creatorcontrib><description>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. 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| source | American Physical Society Journals |
| subjects | Ferroelectric materials Ferroelectricity Lead zirconate titanates Nucleation Polarization Switching Zirconium |
| title | Stochastic multistep polarization switching in ferroelectrics |
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