High pressure spectroscopy of LLGG doped with Cr3+
β Scribed by D. Galanciak; P. Perlin; M. Grinberg; A. Suchocki
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 277 KB
- Volume
- 60-61
- Category
- Article
- ISSN
- 0022-2313
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π SIMILAR VOLUMES
New compounds LaMS 3 with NH 4 CdCl 3 -type crystal structure could be prepared by high-pressure synthesis where M β«Ψβ¬ Ti, V, Cr. The high-pressure compounds were obtained above 2.5 GPa at 1375 K for M β«Ψβ¬Cr, above 3.5 GPa at 1375 K for M β«Ψβ¬ Ti, and above 5 GPa at 1475 K for M β«Ψβ¬ V, respectively.
## Abstract Raman scattering of Lβasparagine:Cr^3+^ was studied over the complete range of wavenumbers at temperatures from ambient to βΌ410 K. A qualitative change in the spectrum occurs when the temperature approaches 400 K. In the region of the spectrum corresponding to lattice vibrations of the