-phase by Raman scattering at high-pressure
β Scribed by Olijnyk, H.; Nakano, S.; Jephcoat, A. P.; Takemura, K.
- Book ID
- 127142490
- Publisher
- The American Physical Society
- Year
- 2006
- Tongue
- English
- Weight
- 101 KB
- Volume
- 74
- Category
- Article
- ISSN
- 1098-0121
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π SIMILAR VOLUMES
The volume dependence of R~IIXLII scattering in sodium, potassium and rubidium azides. measured for the first time to purely hydrostatic pressures of about 40 kbar, shows interesting features. In KNs, there is an increase in the relative intensity ofthe E, translational mode with increasing pressure
The pressure dependence of the Raman spectra of was investigated up to 15.5 GPa. The anti-ferrodistortive SrTiO 3 cubic-tetragonal phase transition (phonon condensation at the R point of the Brillouin zone) occurs at about 6 GPa. The strong, broad bands, present under ambient conditions, sharpen and