Molecular dissociation and two low-temperature high-pressure phases of H2S

Hiroshi Fujihisa, Hiroshi Yamawaki, Mami Sakashita, Atsuko Nakayama, Takahiro Yamada, Katsutoshi Aoki

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

We performed powder x-ray experiments on hydrogen sulfide (H2S) under high pressure at room and low temperatures. Phase V appearing above 27 GPa at room temperature was confirmed by x ray to be associated with a molecular dissociation. The molecular dissociation was first observed at 150 K at a higher pressure around 43 GPa. Two new low-temperature high-pressure phases III′ and IV′ were discovered. Spiral chains of sulfur atoms are found in both phases as well as in phase IV.

Original languageEnglish
Article number214102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number21
DOIs
Publication statusPublished - 2004 Jun 1
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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