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MA Yan-Ping, LI Fang-Fei. In-situ Raman Study and Phase Transition of Gypsum under High Pressure[J]. Chinese Journal of High Pressure Physics, 2012, 26(3): 357-360. doi: 10.11858/gywlxb.2012.03.018
Citation: MA Yan-Ping, LI Fang-Fei. In-situ Raman Study and Phase Transition of Gypsum under High Pressure[J]. Chinese Journal of High Pressure Physics, 2012, 26(3): 357-360. doi: 10.11858/gywlxb.2012.03.018

In-situ Raman Study and Phase Transition of Gypsum under High Pressure

doi: 10.11858/gywlxb.2012.03.018
  • Received Date: 18 Jan 2011
  • Rev Recd Date: 22 Mar 2011
  • Issue Publish Date: 15 Jun 2012
  • In-situ high-pressure Raman study of the gypsum was carried out from 0 to 35 GPa with a diamond anvil cell (DAC). The authors determined the pressure dependences of the Raman bands of gypsum. A new Raman peak 1 012 cm-1 in the stretching vibration of range is found at pressure of about 4.5 GPa, and its intensity is shown to strengthen with increasing pressure. So we can determine the occurrence of pressure-induced phase transition near 4.5 GPa.

     

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