High-pressure phase transformation studies in gadolinium to 106 GPa

Jagannadham Akella, Gordon S. Smith, Andrew P. Jephcoat

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

We investigated the high-pressure structural transformations in gadolinium at room temperature. Up to a pressure of 106 GPa, gadolinium metal undergoes four structural transformations: h.c.p.→ Sm-type → d.h.c.p. → f.c.c. → t.h.c.p. The corresponding transformation pressures are: 1.5 ± 0.2 GPa, 6.5 ± 0.5 GPa; onset at 24.0 GPa and completion at 29.0 GPa; and between 44.0 and 55.0 GPa, respectively. We found a much larger stability range for f.c.c.-gadolinium phase than that reported by others.

Original languageEnglish
Pages (from-to)573-576
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume49
Issue number5
DOIs
Publication statusPublished - 1988

Keywords

  • Gadolinium
  • diamond-cell
  • equation-of-state
  • megabar

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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