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Ferroelectricity in Pb1+δZrO3 Thin Films
- Source :
- Chemistry of Materials. 29:6544-6551
- Publication Year :
- 2017
- Publisher :
- American Chemical Society (ACS), 2017.
-
Abstract
- Antiferroelectric PbZrO3 is being considered for a wide range of applications where the competition between centrosymmetric and noncentrosymmetric phases is important to the response. Here, we focus on the epitaxial growth of PbZrO3 thin films and understanding the chemistry–structure coupling in Pb1+δZrO3 (δ = 0, 0.1, 0.2). High-quality, single-phase Pb1+δZrO3 films are synthesized via pulsed-laser deposition. Although no significant lattice parameter change is observed in X-ray studies, electrical characterization reveals that while the PbZrO3 and Pb1.1ZrO3 heterostructures remain intrinsically antiferroelectric, the Pb1.2ZrO3 heterostructures exhibit a hysteresis loop indicative of ferroelectric response. Further X-ray scattering studies reveal strong quarter-order diffraction peaks in PbZrO3 and Pb1.1ZrO3 heterostructures indicative of antiferroelectricity, while no such peaks are observed for Pb1.2ZrO3 heterostructures. Density functional theory calculations suggest the large cation nonstoichiometry ...
- Subjects :
- 010302 applied physics
Materials science
Condensed matter physics
Scattering
General Chemical Engineering
Heterojunction
02 engineering and technology
General Chemistry
Crystal structure
021001 nanoscience & nanotechnology
01 natural sciences
Ferroelectricity
Lattice constant
0103 physical sciences
Materials Chemistry
Antiferroelectricity
Density functional theory
Thin film
0210 nano-technology
Subjects
Details
- ISSN :
- 15205002 and 08974756
- Volume :
- 29
- Database :
- OpenAIRE
- Journal :
- Chemistry of Materials
- Accession number :
- edsair.doi...........6ffba6a7187281bbd4d75daf893bf8c5