Thickness effect of ferroelectric domain switching in epitaxial PbTiO3 thin films on Pt(001)/MgO(001)
SCIE
SCOPUS
- Title
- Thickness effect of ferroelectric domain switching in epitaxial PbTiO3 thin films on Pt(001)/MgO(001)
- Authors
- Kim, YK; Kim, SS; Shin, H; Baik, S
- Date Issued
- 2004-06-21
- Publisher
- AMER INST PHYSICS
- Abstract
- Epitaxial PbTiO3 thin films of various thicknesses were prepared by pulsed laser deposition on Pt(001)/MgO(001) substrates. Their ferroelectric domain structures and switching behavior were then investigated mainly using scanning force microscopy as a function of film thickness. Direct evidence of a-domain switching was observed under an external electric field, while its contribution to the total piezoelectric response was found negligible. Thinner epitaxial PbTiO3 films with higher c-domain population and larger tetragonality resulted in enhanced d(33) piezoelectric coefficients. The results suggest that the key factor determining the piezoelectric response in epitaxial ferroelectric films is not the a-to-c domain switching but apparently the population of c-domains and their tetragonality. (C) 2004 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9472
- DOI
- 10.1063/1.1759776
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 84, no. 25, page. 5085 - 5087, 2004-06-21
- Files in This Item:
-
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.