摘要
High-pressure Raman spectroscopy and X-ray diffraction studies of celestite (SrSO4) were carried out in a diamond anvil cell at room temperature. Variation in the Raman vibrational frequency and change of lattice parameters with pressure indicate that a transformation occurs in celestite. This transformation caused an adjustment in the SrO polyhedra that affected the stretching-force constant of SO4. Moreover, compressibilities along the crystallographic axes decreased in the order a to c to b. From the compression data, the bulk modulus of the celestite was 87 GPa. Both X-ray and Raman data show that the transition in celestite is reversible.
原文 | English |
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頁(從 - 到) | 4386-4388 |
頁數 | 3 |
期刊 | Physica B: Condensed Matter |
卷 | 405 |
發行號 | 20 |
DOIs | |
出版狀態 | Published - 2010 十月 15 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering