1. A Structural Consideration of a Solid Solution La4Ni3-xMnxO10
- Author
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Halina B. Misram, Naoki Kamegashira, and Shunkichi Ueno
- Subjects
Crystallography ,Materials science ,Lattice constant ,Mechanics of Materials ,Rietveld refinement ,Mechanical Engineering ,Phase (matter) ,General Materials Science ,Orthorhombic crystal system ,Crystal structure ,Superstructure (condensed matter) ,Perovskite (structure) ,Solid solution - Abstract
The solubility of manganese ion in layered perovskite La4Ni3O10 phase was examined and the detailed crystal structure of this phase was discussed. The solid solution of La4Ni3-xMnxO10 was prepared by solid state reaction. The crystal structure of La4Ni3-xMnxO10 was analyzed by powder X-ray diffraction and Rietveld methods. The solid solution for x=0.5 had a orthorhombic system with lattice parameter a=0.5485(0), b=0.5433(6) and c=2.8034(9). In detailed observation of the X-ray diffraction data, some superlattice reflections that were forbidden for a face centered orthorhombic cell were identified. A possible space group Pnnn (no.48) was derived from the reflection conditions.
- Published
- 2006
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