Raman spectroscopy and X-ray diffraction studies on celestite

Yen-Hua Chen, Shu Cheng Yu, Eugene Huang, Pei Lun Lee

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

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
頁(從 - 到)4386-4388
頁數3
期刊Physica B: Condensed Matter
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

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