TY - JOUR KW - Film growth KW - Crystal structure KW - Crystallography KW - Bismuth compounds KW - Ferroelectricity KW - Ferroelectric domain structure KW - Polarization direction KW - Piezoelectric force microscopy (PEM) KW - Light polarization KW - In-plane piezoresponse KW - Cantilever beams AU - F Zavaliche AU - R.R Das AU - D.M Kim AU - C.B Eom AU - S.Y Yang AU - P Shafer AU - Ramamoorthy Ramesh AB - Piezoelectric force microscopy is employed to study the ferroelectric domain structure in a 600 nm thick epitaxial BiFe O3 film. In the as-grown film, a mosaic-like domain structure is observed. Scans taken with the cantilever pointing along the principal crystallographic directions enabled us to reconstruct the polarization direction. By combining the perpendicular and in-plane piezoresponse data, we found that the ferroelectric domain structure is mainly described by four polarization directions. These directions point oppositely along two body diagonals, which form an angle of ∼71°. The other variants are also occasionally observed. © 2005 American Institute of Physics. BT - Applied Physics Letters DO - 10.1063/1.2126804 LA - eng M1 - 18 N1 - cited By 95 N2 - Piezoelectric force microscopy is employed to study the ferroelectric domain structure in a 600 nm thick epitaxial BiFe O3 film. In the as-grown film, a mosaic-like domain structure is observed. Scans taken with the cantilever pointing along the principal crystallographic directions enabled us to reconstruct the polarization direction. By combining the perpendicular and in-plane piezoresponse data, we found that the ferroelectric domain structure is mainly described by four polarization directions. These directions point oppositely along two body diagonals, which form an angle of ∼71°. The other variants are also occasionally observed. © 2005 American Institute of Physics. PY - 2005 SP - 1 EP - 3 T2 - Applied Physics Letters TI - Ferroelectric domain structure in epitaxial BiFeO 3 films VL - 87 SN - 00036951 ER -