Nature Communications (May 2022)

Structural complexity in ramp-compressed sodium to 480 GPa

  • Danae N. Polsin,
  • Amy Lazicki,
  • Xuchen Gong,
  • Stephen J. Burns,
  • Federica Coppari,
  • Linda E. Hansen,
  • Brian J. Henderson,
  • Margaret F. Huff,
  • Malcolm I. McMahon,
  • Marius Millot,
  • Reetam Paul,
  • Raymond F. Smith,
  • Jon H. Eggert,
  • Gilbert W. Collins,
  • J. Ryan Rygg

DOI
https://doi.org/10.1038/s41467-022-29813-4
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 7

Abstract

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The properties of materials can be drastically modified under extreme pressure. Here the authors investigate ramp-compressed sodium to 5 million atmospheres with in situ X-ray diffraction and optical reflectivity, revealing a complex temperature-driven polymorphism and suggesting the formation of a previously predicted electride phase.