| Инд. авторы: | Isaenko L.I., Mel'nikova S.V., Merkulov A.A., Pashkov V.M., Tarasova A.Yu. |
| Заглавие: | Investigation of the influence of gradual substitution K ↔ Rb on the structure and phase transition in K x Rb1 - X Pb 2Br5 solid solutions |
| Библ. ссылка: | Isaenko L.I., Mel'nikova S.V., Merkulov A.A., Pashkov V.M., Tarasova A.Yu. Investigation of the influence of gradual substitution K ↔ Rb on the structure and phase transition in K x Rb1 - X Pb 2Br5 solid solutions // Physics of The Solid State. - 2009. - Vol.51. - Iss. 3. - P.589-592. - ISSN 1063-7834. - EISSN 1090-6460. |
| Внешние системы: | DOI: 10.1134/S1063783409030251; SCOPUS: 2-s2.0-62249093769; |
| Реферат: | eng: Single crystals of K x Rb1 - x Pb2Br 5 solid solutions have been grown and investigated using X-ray diffraction and polarized light microscopy in the temperature range 270-640 K. The regions of existence of the tetragonal (I4/mcm) and monoclinic (P2 1/c) phases have been determined. It has been demonstrated that the partial introduction of rubidium into KPb2Br5 leads to an increase in the temperature of the ferroelastic phase transition (P2 1/c↔mmm), so that it approaches the melting temperature. In the solid solutions with x ≈ 0.4-0.5, the temperature region of existence of the orthorhombic phase is narrowed to ≈ 1-2 K. It has been revealed that an increase in the potassium content in the material results in a considerable increase in the incorporation coefficient of Er3+ ions. © 2009 Pleiades Publishing, Ltd.
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| Издано: | 2009 |
| Физ. характеристика: | с.589-592 |