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초록
We report on ferroelectric properties of the monoclinic BiFeO3 thin films grown on (001) and (110) SrTiO3 substrates. Structural analysis using X-ray diffractometer and the electrical characterization of ferroelectricity reveal that the elastic constraint induced by the crystallographic orientation affects the remnant polarization values and retention properties of BiFeO3. The in-depth analysis based on the Williamson-Hall plot and thermodynamic analysis manifests that inhomogeneous strain related to the strain relaxation in the film is responsible for the change of the out-of-plane polarization and retention property of BiFeO3 thin films depending on the substrate orientation. (C) 2016 Elsevier B.V. All rights reserved.
키워드
Ferroelectric; BiFeO3; Pulsed laser deposition; DOMAIN CONTROL; POLARIZATION
- 제목
- Effect of substrate orientation on ferroelectric behavior of monoclinic BiFeO3 thin film
- 저자
- Jeon, B. C.; Yang, S. M.; Chae, S. C.
- 발행일
- 2017-05
- 유형
- Article
- 권
- 17
- 호
- 5
- 페이지
- 684 ~ 687