High-pressure Raman study of CsVO3 and pressure-induced phase transitions
β Scribed by G. A. Kourouklis; A. Jayaraman; G. P. Espinosa; A. S. Cooper
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 325 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0377-0486
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## Abstract Raman spectra of a 3βmethylβ4βnitropyridine __N__βoxide crystal were investigated as a function of pressure in a diamondβanvil cell up to 93 kbar at room temperature. The crystal shows successive reversible phase transitions at 8, 20 and 60 kbar. Above 60 kbar, all of the external Raman
## Abstract We report here highβpressureβinduced phase transitions observed in nanocrystalline perovskite La~0.8~Sr~0.2~Mn~0.8~Fe~0.19~^57^Fe~0.01~O~3~ as a function of pressure up to 9.2 GPa at room temperature by Raman spectroscopy. The nanocrystalline sample, synthesized by the solβgel technique