Band-overlap metallization of cesium iodide

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

doi:10.1103/PhysRevLett.55.977

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 journal › Article › peer-review

29 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	977-979
Number of pages	3
Journal	Physical Review Letters
Volume	55
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.55.977
State	Published - Jan 1 1985

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Band-overlap metallization of cesium iodide",

abstract = "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.",

author = "Vohra, {Yogesh K.} and Weir, {Samuel T.} and Brister, {Keith E.} and Ruoff, {Arthur L.}",

year = "1985",

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AU - Weir, Samuel T.

AU - Brister, Keith E.

AU - Ruoff, Arthur L.

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Y1 - 1985/1/1

N2 - 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.

AB - 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.

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Band-overlap metallization of cesium iodide

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