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Mixture domain states in PbTiO3 film with potentials for functional application
- Source :
- Applied Physics Letters. 114:242901
- Publication Year :
- 2019
- Publisher :
- AIP Publishing, 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.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.
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
02 engineering and technology
021001 nanoscience & nanotechnology
Microstructure
Epitaxy
Polarization (waves)
01 natural sciences
Synchrotron
law.invention
Condensed Matter::Materials Science
Reciprocal lattice
Lattice constant
law
Lattice (order)
0103 physical sciences
0210 nano-technology
Anisotropy
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 114
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........59c223f923bf17fc1e2700dc15b64aa8