High Pressure Raman and X-Ray Studies of Sulfur and its New Phase Transition
- Murli H. Manghnani and
- Yasuhiko Syono
Published Online: 21 MAR 2013
Copyright © 1987 by Terra Scientific Publishing Company (TERRAPUB), Tokyo.
High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto
How to Cite
Wang, L., Zhao, Y., Lu, R., Meng, Y., Fan, Y., Luo, H., Cui, Q. and Zou, G. (1987) High Pressure Raman and X-Ray Studies of Sulfur and its New Phase Transition, in High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto (eds M. H. Manghnani and Y. Syono), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM039p0299
- Published Online: 21 MAR 2013
- Published Print: 1 JAN 1987
Print ISBN: 9780875900667
Online ISBN: 9781118664124
- Mineralogy and Crystal Chemistry;
- Phase transformations;
- High Pressure-High Temperature Research
High pressure Raman spectra reveal that orthorhombic sulfur probably undergoes a structural transition at ambient temperature and about 5 GPa. In situ single-crystal X-ray diffraction data confirm that the orthorhombic structure transforms into a triclinic structure at 5.3 GPa. The dependence of mode-Grüneisen parameter (γ l ) on vibrational frequency (ν l ) was determined at several pressures from the Raman spectra and compressibilities measured with a pistoncylinder apparatus. The behavior of γ l with ν l is roughly described by the expression γ l ∼ν l −2.