Crystal structure and electronic structure of the La1-xKxCo1-xNbxO3 oxides
| Autor: | Y.-H. Shih, Guo-Ju Chen, T.-W. Huang, Yee-Shin Chang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Diffraction
Valence (chemistry) Materials science Superlattice Nanotechnology 02 engineering and technology Crystal structure Electronic structure 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Ion Crystallography X-ray photoelectron spectroscopy Lattice (order) Ceramics and Composites 0210 nano-technology |
| Zdroj: | Advances in Applied Ceramics. 116:71-76 |
| ISSN: | 1743-6761 1743-6753 |
| DOI: | 10.1080/17436753.2016.1220669 |
| Popis: | The La1−xKxCo1−xNbxO3 oxides were prepared by conventional solid state reaction technique. By using the GSAS programme a successful fit (Rp = 3.45%, Rwp = 2.77%, X2 = 1.28) was obtained, for x = 0.1. Refinements confirmed that K occupying the La sites and Nb for Co sites gave an acceptable occupancy factor for K and Nb. The valence state of all the ions in the system was determined by XPS analysis, and the lattice parameters were calculated according to the results of selected-area-diffraction (SAD) patterns and X-ray diffraction (XRD) identifications. The direction of the superlattice structure along [001] was found for x = 0.1 as identified from the SAD patterns. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|