The atomic positions in perovskitic BiFeO3 were determined using X-ray single crystal diffraction and neutron powder diffraction. The space group is R3c, the rhombohedral unit cell containing 2 formula units of BiFeO3. Antiferroelectricity is not permitted in this structure, but ferroelectricity is ...
Probing the domain structure of BiFeO3 epitaxial films with three-dimensional reciprocal space mappingdoi:10.1063/1.4875579Reciprocal spaceThin film structureAtomic force microscopyEpitaxyFerroelectric materialsHigh-resolution 3-Dimensional Reciprocal Space Mapping (3D-RSM) has been performed on mixed-phase ...
Moreover, we confirm that the degree of defect ordering at the walls, which affect the domain-wall conductivity, can be tuned by the cooling rate used during the annealing, allowing us to determine how this ordering affects the atomic structure of the walls. The results are useful in the ...
Govindaraj1,2* This study provides new insights on the formation of the nanocrystallites of phase pure BiFeO3 prepared using sol–gel method with tartaric acid as the fuel as comprehended based on the local structure and magnetic hyperfine fields at Fe sites using Mossbauer spectroscopy. ...
We also demonstrate that the atomic-scale checkerboard has a multiferroic ground state with the desired properties of each constituent material: polar and ferrimagnetic due to BiFeO3 and BiMnO3, respectively. 展开 关键词: Inflation String landscape CMB observations ...
Finally, the optical properties of BiFeO3 are discussed based on the band structure calculations. Introduction Bismuth ferrite (BiFeO3), as a promising room temperature single-phase multiferroic material, has attracted extensive research activities recently due to its fundamental importance and potential ...
Related to Perovskite structure:Spinel structure pe·rovsk·ite (pə-rŏvz′kīt′, -rŏfs′-) n. 1.A relatively rare yellow, brown, or black mineral, CaTiO3, sometimes containing rare-earth elements such as lanthanum. 2.Any of various oxides having a crystal structure similar to that...
Rhombohedral-Orthorhombic Ferroelectric Morphotropic Phase Boundary Associated with a Polar Vortex in BiFeO3Films. Strongly correlated oxides exhibit multiple degrees of freedoms, which can potentially mediate exotic phases with exciting physical properties, such as the... W Geng,X Guo,Y Zhu,... - 《...
Fig. 1: Determination of the 3D atomic structure of a 10.1 nm BaTiO3nanoparticle (Particle 2). aCation atomic layers along the [001] crystallographic direction, showing the 3D atomic arrangements of alternating Ba and Ti layers.b–d1.07 Å thick internal slices of the 3D tomogram al...
Tuning the atomic and domain structure of epitaxial films of multiferroic BiFeO3 . Phys. Rev. B 81, 144115 (2010) ADS Google Scholar Watanabe, M., Okunishi, E. & Ishizuka, K. Analysis of spectrum-imaging datasets in atomic-resolution electron microscopy. Microscopy Anal. 23, 5–7 (2009...