High pressure X-ray diffraction study of tungsten disulfide

Emre Selvi, Yanzhang Ma, Resul Aksoy, Atila Ertas, Allen White

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Synchrotron X-ray diffraction was used in conjunction with a diamond anvil cell to investigate the properties of tungsten disulfide (WS2) to 25.5 GPa at room temperature. No pressure medium was used to generate hydrostatic pressure. No phase transformation was observed in the pressure range studied. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus was determined to be K0T=61±1 GPa with its pressure derivative K′0T=9.0±0.3. It is also found that the c-direction of the hexagonal structure is much more compressible than the a-direction.

Original languageEnglish
Pages (from-to)2183-2186
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume67
Issue number9-10
DOIs
StatePublished - Sep 2006

Keywords

  • C. High pressure
  • C. X-ray diffraction
  • D. Equation-of-state

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