%0 Journal Article
%K nanostructured materials
%K Domain walls
%K Electrostatic boundary conditions
%K Periodic structures
%K Bottom electrodes
%K Walls (structural partitions)
%K Semiconducting bismuth compounds
%K Anisotropic strains
%K Domain architectures
%K Domain structures
%K La-substituted
%K Nanoscale arrays
%K Nanoscale controls
%K One-dimensional
%K Periodic domains
%K Piezoresponse force microscopies
%K Poling effects
%K Single-crystal substrates
%K X- ray diffractions
%A Y.-H Chu
%A Q He
%A C.-H Yang
%A P Yu
%A L.W Martin
%A P Shafer
%A Ramamoorthy Ramesh
%B Nano Letters
%D 2009
%G eng
%P 1726-1730
%R 10.1021/nl900723j
%T Nanoscale control of domain architectures in BiFeO 3 thin films
%V 9
%X We demonstrate an approach to create a one-dimensional nanoscale array of domain walls in epitaxial La-substituted BiFeO 3 films. We have used a DyScO 3 (110) o single-crystal substrate to provide an anisotropic strain to exclude two of the possible structural variants. Furthermore, through careful control of electrostatic boundary conditions, such as the thickness of the SrRuO 3 bottom electrode to induce the self-poling effects, we can choose to obtain either 109° or 71° one-dimensional periodic domain walls. Detailed measurements of the domain structures is shown using piezoresponse force microscopy and X-ray diffraction, which confirms that these periodic structures are the same as those suggested in previous literature. © American Chemical Society.