Band-overlap metallization of cesium iodide

Yogesh K. Vohra*, Samuel T. Weir, Keith E. Brister, Arthur L. Ruoff

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


X-ray diffraction studies to 73 GPa show that CsI becomes orthorhombic at about 56 GPa. Infrared absorption studies show the band gap dropping from 6.4 to 0.36 eV at 62 GPa. At 65 5 GPa, CsI becomes metallic and reflects in the red, which we attribute to the plasma edge being in the visible. The interatomic distances of the nearest like neighbors are reduced from the zeropressure value by 28% at metallization where CsI has a pseudo tenfold coordination.

Original languageEnglish (US)
Pages (from-to)977-979
Number of pages3
JournalPhysical Review Letters
Issue number9
StatePublished - Jan 1 1985

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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