Synchrotron-based x-ray-diffraction study of the intermediate-high-pressure phase in the alloy In0.25 Sn0.75

S. Meenakshi, V. Vijayakumar, B. K. Godwal, S. K. Sikka

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In0.25Sn0.75 alloy stabilized in the primitive hexagonal phase at ambient conditions is studied in a diamond anvil cell at high pressures with angle-dispersive x-ray diffraction using the synchrotron radiation at ELETTRA. The ambient primitive hexagonal phase was found to undergo a reversible transformation to a mixture of body-centered-tetragonal and hexagonal-close-packed phases above 11.6 GPa and not to the Cmca structure assigned in Si and Ge. The occurrence of the bct phase shows similarity to the high-pressure behavior of Sn. A transformation mechanism from the ph to hcp phase via the bct structure is also described.

Original languageEnglish
Article number212104
Pages (from-to)2121041-2121044
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number21
StatePublished - 1 Dec 2001
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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