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Twin-coupled domain structures in epitaxial relaxor ferroelectric Ba(Zr,Ti)O3 thin films on (001) MgO substrate.
- Source :
-
Philosophical Magazine Letters . Aug2009, Vol. 89 Issue 8, p493-503. 11p. 4 Diagrams, 2 Charts, 1 Graph. - Publication Year :
- 2009
-
Abstract
- We report the twin-coupled multi-oriented domain structures in the epitaxial BZT20 (20%Zr) films grown on the (001) MgO substrate using pulsed-laser deposition. Transmission electron microscopy shows that the film consists of an epitaxial layer of pseudo-cubic perovskite structure and a nanopillar layer of multi-oriented twin domain structures near the surface. Four types of the twin domains were formed in the nanopillar layers by coherently joining their {111} with the epilayer and aligning their 〈110〉 directions parallel to the 〈110〉 axes of the epilayer. A non-uniform polarization switching behavior was observed due to the formation of such complex structure in the BZT20 films. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09500839
- Volume :
- 89
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Philosophical Magazine Letters
- Publication Type :
- Academic Journal
- Accession number :
- 43494567
- Full Text :
- https://doi.org/10.1080/09500830903092381