Pressure-induced phase transition in YVO4:Eu3+: An emission lifetime study at high pressure
โ Scribed by G. Chen; N.A. Stump; R.G. Haire; J.R. Peterson; M.M. Abraham
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 227 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0038-1098
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## Abstract We studied polymorphic transitions occurring in ฮฒโGe~3~N~4~ metastably compressed to high pressures (__P__ = 40 GPa) at room temperature. Previous studies under highโpressureโhighโtemperature conditions have shown that this phase transforms into a newly discovered spinelโstructured mate
## Abstract We report here highโpressureโinduced 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 solโgel technique