The structure and luminescent properties of Mn0.5Zr2(PO4)3
| Autor: | R. Olazcuaga, G. Le Flem, R. Brochu, A. Mouline, C. Parent, M. Alami |
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| Rok vydání: | 2000 |
| Předmět: |
Photoluminescence
Mechanical Engineering Crystal structure Condensed Matter Physics Magnetic susceptibility chemistry.chemical_compound Crystallography Zirconium phosphate chemistry Mechanics of Materials Group (periodic table) General Materials Science Emission spectrum Luminescence Chemical composition Nuclear chemistry |
| Zdroj: | Materials Research Bulletin. 35:899-908 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/s0025-5408(00)00277-4 |
| Popis: | The phosphate Mn0.5Zr2(PO4)3 can be obtained at high temperature (1400°C). It crystallizes in the rhombohedral system (space group R3) with parameters ah = 8.85(1) and ch = 21.80(5) A in the equivalent hexagonal cell. Its structure, determined by the Rietveld method, is typical of the Nasicon-type arrangement with a partial occupation of the two M(1) sites [(3a) and (3b)] generated by the space group. The magnetic and luminescent properties are consistent with the crystallographic data and give evidence of the existence of a small amount of Mn3+ in such as-prepared samples, the actual composition being Mn2+0.5–xMn3+2x/3Zr2(PO4)3 with x ≅ 0.03. |
| Databáze: | OpenAIRE |
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