Publication Date
7-12-2021
Document Type
Article
Publication Title
Applied Physics Letters
Volume
119
Issue
2
DOI
10.1063/5.0056110
Abstract
Understanding the temperature dependence of how ferroelectric materials respond to electric fields is critical for determining how best to use these materials in applications. Here, temperature dependent in situ x-ray diffraction is used to study how field-response mechanism Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 evolves with temperature. Increasing the measurement temperature was found to slightly reduce the extent of domain reversal and the magnitude of the 111 lattice strain. Instead, these results indicate that temperature predominantly impacted the angular dependence of the 002/200 lattice strain. We attribute the observed differences in 002/200 lattice strain to the flattening of the free-energy near the tetragonal-orthorhombic phase boundary, where the flattening of the energy landscape promotes a polarization rotation response during the application of electric fields at room temperature.
Department
Chemical and Materials Engineering
Recommended Citation
Chris M. Fancher, Özgür Keleṣ, Matthias Ehmke, and Keith J. Bowman. "Temperature dependence of field-response mechanisms in 0.4Ba(Zr0.2Ti0.8)O3-0.6(Ba0.7Ca0.3)TiO3" Applied Physics Letters (2021). https://doi.org/10.1063/5.0056110
Comments
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Applied Physics Letters, Volume 119, Issue 2, Article 022904, 2021 and may be found at https://doi.org/10.1063/5.0056110.