| Инд. авторы: | Vtyurin A.N., Krylov A.S., Goryainov S.V., Krylova S.N., Oreshonkov A.S., Voronov V.N. |
| Заглавие: | A raman study of hydrostatic pressure induced phase transitions in Rb 2KInF 6 crystals |
| Библ. ссылка: | Vtyurin A.N., Krylov A.S., Goryainov S.V., Krylova S.N., Oreshonkov A.S., Voronov V.N. A raman study of hydrostatic pressure induced phase transitions in Rb 2KInF 6 crystals // Physics of The Solid State. - 2012. - Vol.54. - Iss. 5. - P.934-936. - ISSN 1063-7834. - EISSN 1090-6460. |
| Внешние системы: | DOI: 10.1134/S1063783412050472; SCOPUS: 2-s2.0-84861448227; |
| Реферат: | eng: The Raman spectra of the elpasolite (Rb 2KInF 6) crystal have been studied in the pressure range from 0 to 5.3 GPa at a temperature of 295 K. A phase transition at a pressure of approximately 0.9 GPa has been found. An analysis of the variations in the spectral parameters has led to the conclusion that the phase transition to a distorted phase is accompanied by the doubling of the volume of the primitive cell of the initial cubic phase. Numerical calculations of the lattice dynamics in the Rb 2KInF 6 crystal have been performed. The numerical simulation has established that the phase transition at a pressure of 0.9 GPa is associated with condensation of the F lg mode. A probable high-pressure phase is the phase with space group C2/m. © 2012 Pleiades Publishing, Ltd.
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| Издано: | 2012 |
| Физ. характеристика: | с.934-936 |