Multi-step stochastic mechanism of polarization reversal in rhombohedral ferroelectrics
arXiv:2004.04966 · doi:10.1103/PhysRevB.102.064107
Abstract
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 identification of preferable switching paths, fractions of individual switching processes, and their activation fields. Complementary, the phenomenological Landau-Ginzburg-Devenshire theory is used to analyze the impact of external field and stress on switching barriers showing that residual mechanical stress may promote the fast switching.
arXiv comment33 pages, 9 figures
References in corpus (4)
- Domain walls of ferroelectric BaTiO3 within the Ginzburg-Landau-Devonshire phenomenological model
- Polar domains in lead titanate films under tensile strain
- Stochastic multi-step polarization switching in ferroelectrics
- Stochastic model of dispersive multi-step polarization switching in ferroelectrics due to spatial electric field distribution
Cited by in corpus (4)
- Ferroelectric Polycrystals: Structural and microstructural levers for property engineering via domain-wall dynamics
- Multi-step stochastic mechanism of polarization reversal in orthorhombic ferroelectrics
- Domain formation and correlation effects in quenched uniaxial ferroelectrics: A stochastic model perspective
- Dynamic scaling properties of multistep polarization response in ferroelectrics