Magnetic properties and oxidation states of manganese ions in doped phosphor Zn2SiO4:Mn
| Autor: | E. V. Zabolotskaya, T. I. Krasnenko, N. A. Zaitseva, Julia A. Barykina, Rina F. Samigullina, T. A. Onufrieva |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Inorganic chemistry chemistry.chemical_element Phosphor 02 engineering and technology Manganese 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Magnetic susceptibility law.invention Ion chemistry law Oxidation state 0103 physical sciences General Materials Science 0210 nano-technology Electron paramagnetic resonance Luminescence Solid solution |
| Zdroj: | Materials Chemistry and Physics. 209:107-111 |
| ISSN: | 0254-0584 |
| Popis: | Investigation of magnetic susceptibility and electron paramagnetic resonance of the samples from the region of solid solution Zn2–2xMn2xSiO4 shows that at x ≤ 0.1 the oxidation state of all manganese ions is +2. At x ≥ 0.2, manganese is present as Mn2+ and Mn3+. Crystal-chemical studies show that defect formation mechanism changes for 0.1 ≤ x ≤ 0.2. Oxidation of part of Mn2+ ions at x > 0.1 causes luminescence concentration quenching in this region of x. |
| Databáze: | OpenAIRE |
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