TY - JOUR
KW - Nanostructured materials
KW - Domain walls
KW - Electrostatic boundary conditions
KW - Periodic structures
KW - Bottom electrodes
KW - Walls (structural partitions)
KW - Semiconducting bismuth compounds
KW - Anisotropic strains
KW - Domain architectures
KW - Domain structures
KW - La-substituted
KW - Nanoscale arrays
KW - Nanoscale controls
KW - One-dimensional
KW - Periodic domains
KW - Piezoresponse force microscopies
KW - Poling effects
KW - Single-crystal substrates
KW - X-ray diffractions
AU - Y.-H Chu
AU - Q He
AU - C.-H Yang
AU - P Yu
AU - L.W Martin
AU - P Shafer
AU - Ramamoorthy Ramesh
AB - 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.
BT - Nano Letters
DO - 10.1021/nl900723j
LA - eng
M1 - 4
N1 - cited By 155
N2 - 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.
PY - 2009
SP - 1726
EP - 1730
T2 - Nano Letters
TI - Nanoscale control of domain architectures in BiFeO 3 thin films
VL - 9
SN - 15306984
ER -