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Mixture domain states in PbTiO3 film with potentials for functional application.
- Source :
-
Applied Physics Letters . 6/17/2019, Vol. 114 Issue 24, pN.PAG-N.PAG. 5p. 1 Color Photograph, 2 Graphs. - Publication Year :
- 2019
-
Abstract
- We investigated the microstructure of PbTiO3 films epitaxially grown on DyScO3 (110) substrates using synchrotron-based 3D reciprocal space mapping and X-ray reflection interface microscopy. The results show that an in-plane anisotropic mixture domain state (a* + a/c) exists in the PbTiO3 films, where a* domains reside between a/c twin stripe domains. Furthermore, when compared with traditional a domains in a/c twins, the a* domain is found to possess a similar in-plane lattice parameter but a much smaller out-of-plane lattice (∼0.5%). We also discovered a temperature-driven transition between a* and a/c pointing to potential applications in functional devices due to the huge mechanical response (4.85%) and polarization rotation between the a* and c domains. [ABSTRACT FROM AUTHOR]
- Subjects :
- *X-ray reflection
*OPTICAL polarization
*LATTICE constants
*SYNCHROTRONS
*MIXTURES
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 114
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 137129020
- Full Text :
- https://doi.org/10.1063/1.5093798