A new layered structure based on perovskite in the SrO-La{sub 2}O{sub 3}-TiO{sub 2} system
- Univ. of Cambridge (United Kingdom)
- New Zealand Institute for Industrial Research and Development, Lower Hutt (New Zealand)
A new compound, Sr{sub 3}La{sub 2}Ti{sub 2}O{sub 10}, has been prepared and characterized by a combination of X-ray diffraction and high-resolution electron microscopy. It is monoclinic (space group P2{sub 1}/m, a = 6.9159(3) {Angstrom}, b = 5.5252(2) {Angstrom}, c = 12.2953(7) {Angstrom}, and {beta} = 85.443(4){degrees}) and refinement of metal positions has been carried out using Rietveld analysis. The structure contains corner-sharing TiO{sub 6} octahedra like those in perovskite, but arranged in ribbons separated by rock-salt layers of Sr/La atoms. The ribbons are one octahedron high and four octahedra wide; efforts to prepare compounds with different widths resulted in mixed layer intergrowths. This new structure may be part of a wider family containing essentially one-dimensional elements of perovskite of special interest to high-temperature superconductivity.
- OSTI ID:
- 486283
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 119; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
Similar Records
La{sup 3+} doping of the Sr{sub 2}CoWO{sub 6} double perovskite: A structural and magnetic study
Synthesis and properties of the double perovskites La{sub 2}NiVO{sub 6}, La{sub 2}CoVO{sub 6}, and La{sub 2}CoTiO{sub 6}