Composition and annealing effects on the linear electro‐optic response of solution‐deposited barium strontium titanate
Abstract
Chemical solution deposition was used to deposit epitaxial BaxSr(1−x)TiO3 thin films on SrTiO3 template layers on Si(001) for x = 1.0, 0.7, 0.5, 0.3, and 0.0. Effective Pockels coefficients were determined as a function of film composition both for as‐deposited films (crystallized at 600°C) and for the films after annealing at 750°C for 10 hours. Pockels response decreased monotonically with decreasing Ba content and coefficients were higher for annealed films, reaching 89 ± 3 pm/V for annealed BaTiO3. These results are contextualized with the aid of X‐ray diffraction and high‐resolution transmission microscopy, which illuminated the crystallinity and defect nature of the films.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 13, 2020
- Source ID
- 10.1111/jace.17291
Entities
People
- Alexander A Demkov
- Bryce I. Edmondson
- John E. Ortmann
- John G Ekerdt
- Moon J. Kim
- Sunah Kwon
Organizations
- Air Force Office of Scientific Research
- National Research Foundation of Korea
- National Science Foundation
- University of Texas at Austin
- University of Texas at Dallas