Phase transitions in GaSb to 110 GPa (1.1 Mbar)

Academic Article


  • The III-V compound GaSb was studied by energy-dispersive x-ray diffraction up to a pressure of 110 GPa with the use of a synchrotron source. The first transformation from the zinc-blende to the -Sn structure confirmed earlier work. This was followed upon an increase in pressure by a new transformation to a simple hexagonal (SH) structure at 27.80.6 GPa. This is the first example of an SH structure in a III-V compound. A transition from the -Sn to SH structure was predicted recently based on ab initio pseudopotential total-energy calculations. Upon a further increase in pressure the simple hexagonal structure transformed to another structure at 61.00.7 GPa which persisted to 110 GPa, the highest pressure to which III-V compounds have been studied. © 1987 The American Physical Society.
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    Digital Object Identifier (doi)

    Author List

  • Weir ST; Vohra YK; Ruoff AL
  • Start Page

  • 4543
  • End Page

  • 4546
  • Volume

  • 36
  • Issue

  • 8