Pressure-induced phase transitions in CuGeO3 from Raman spectroscopic studies
β Scribed by A. Jayaraman; S. R. Shieh; S. K. Sharma; L. C. Ming; S. Y. Wang
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 237 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.676
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## Abstract Although three forms of lithium phosphate are known, a complete structural description of the highest temperature polymorph has not yet been given. In the present work, the phase transitions of lithium phosphate were investigated at high temperatures using Raman microscopy and xβray pow
The gypsum-bassanite-anhydrite phase transition sequence was followed up to 550 K at ambient pressure in a naturally occurring gypsum using Raman spectroscopy. The spectral variations of the internal (CaSO 4 AE 2H 2 O) modes of sulphate tetrahedra and were used to probe the structural phase transiti