Structural transition in compressed amorphous sulfur

Chrystele Sanloup, Eugene Gregoryanz, Olga Degtyareva, Michael Hanfland

Research output: Contribution to journalArticlepeer-review

Abstract

Properties of amorphous sulfur (a-S) were investigated by synchrotron x-ray diffraction up to 100 GPa between 40 and 175 K. Measurements of the structure factor yielded the radial distribution function and the densities of two amorphous forms. a-S undergoes a structural transition above 65 GPa, accompanied by density discontinuity of 7%. These results indicate the amorphous-amorphous transition, from a low-density to a high-density form, and open up the possibility for the direct measurements of density of liquid-amorphous materials at extreme conditions.

Original languageEnglish
Article number075701
Pages (from-to)-
Number of pages4
JournalPhysical Review Letters
Volume100
Issue number7
DOIs
Publication statusPublished - 22 Feb 2008

Keywords

  • PRESSURE-INDUCED AMORPHIZATION
  • X-RAY-DIFFRACTION
  • DENSITY-MEASUREMENTS
  • LIQUID
  • SILICA
  • STATE
  • GPA
  • EQUATION
  • PHASE
  • ICE

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