Partial decoupling between strain and polarization in mono-oriented Pb(Zr0.2Ti0.8)O3 thin film
arXiv:0705.3354 · doi:10.1063/1.2742313
Abstract
The structural evolution of epitaxial mono-oriented (i.e. with the c-axis perpendicular to the interface) ferroelectric Pb(Zr0.2,Ti0.8)O3 thin film has been investigated, using high resolution, temperature dependent, X-ray diffraction. The full set of lattice parameters was obtained, it allowed to estimate the variation of the polarization as a function of temperature, underlying the difference between the polarization-induced tetragonality and the elastic one. The temperature evolution of the misfit strain has been calculated and found to be in good agreement with the theoretical temperature-misfit strain phase diagram
11 pages, 3 figures
References in corpus (5)
- Phase diagram of Pb(Zr,Ti)O3 solid solutions from first principles
- Structural phase transitions in epitaxial perovskite films
- Strain phase diagram and domain orientation in SrTiO thin films
- High pressure phases in highly piezoelectric Pb(Zr0.52Ti0.48)O3
- Low-temperature phases in Pb(Zr0.52Ti0.48)O3: A neutron powder diffraction study