Three-dimensional ferroelectric domain imaging of epitaxial BiFeO{sub } thin films using angle-resolved piezoresponse force microscopy.
Here we introduce angle-resolved piezoresponse force microscopy (AR-PFM), whereby the sample is rotated by 30{sup o} increments around the surface normal vector and the in-plane PFM phase signals are collected at each angle. We obtained the AR-PFM images of BaTiO{sub 3} single crystal and cube-on-cube epitaxial (001) BiFeO{sub 3} (BFO) thin film on SrRuO{sub 3}/SrTiO{sub 3} substrate, and confirmed that the AR-PFM provides more unambiguous information on the in-plane polarization directions than the conventional PFM method. Moreover, we found eight additional in-plane polarization variants in epitaxial BFO thin films, which are formed to mitigate highly unstable charged domain boundaries.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 992403
- Report Number(s):
- ANL/MSD/JA-67858
- Journal Information:
- Appl. Phys. Lett., Journal Name: Appl. Phys. Lett. Journal Issue: 2010 Vol. 97; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Orientation dependence of ferroelectric behavior of BiFeO{sub 3} thin films
Study of epitaxial multiferroic BiFeO{sub 3} films