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High temperature phase transitions in rare-earth element niobates R3NbO7

✍ Scribed by A.N. Klimenko; Yu.S. Kozlov; V.S. Sergeev; E.A. Pastukhov


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
439 KB
Volume
209
Category
Article
ISSN
0040-6031

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High temperature Raman scattering in Sm0
✍ P. Alain; J. P. Coutures; B. Piriou πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 427 KB

## Abstract Raman spectra of molten Sm~0.8~La~0.2~AlO~3~ have been recorded from room temperature to 1470 K. Experimental results show that a first‐order phase transition occurs at 580 K and that two phonon modes appear very unstable in the high temperature phase. Comparison with Raman data obtaine