Single-Crystal-Like, c-axis Oriented BaTiO3 Thin Films with High-Performance on Flexible Metal Templates for Ferroelectric Applications
- ORNL
Epitaxial, c-axis oriented BaTiO{sub 3} thin films were deposited using pulsed laser ablation on flexible, polycrystalline Ni alloy tape with biaxially textured oxide buffer multilayers. The high quality of epitaxial BaTiO{sub 3} thin films with P4mm group symmetry was confirmed by x-ray diffraction. The microscopic ferroelectric domain structure and the piezoelectric domain switching in these films were confirmed via spatially resolved piezoresponse mapping and local hysteresis loops. Macroscopic measurements demonstrate that the films have well-saturated hysteresis loops with a high remanent polarization of {approx} 11.5 {micro}C/cm{sup 2}. Such high-quality, single-crystal-like BaTiO{sub 3} films on low-cost, polycrystalline, flexible Ni alloy substrates are attractive for applications in flexible lead-free ferroelectric devices.
- Research Organization:
- Oak Ridge National Laboratory (ORNL); Center for Nanophase Materials Sciences
- Sponsoring Organization:
- ORNL LDRD Director's R&D
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 963692
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 25 Vol. 94; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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