Formation and structure of a dense octahedral glass

M. Guthrie, C. A. Tulk, C. J. Benmore, J. Xu, J. L. Yarger, D. D. Klug, J. S. Tse, H. K. Mao, R. J. Hemley

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154 Scopus citations


The formation and structure of GeO2, dense octahedral and high pressure glass, were analyzed. The study was carried out by using x-ray and neutron-diffraction measurements and molecular dynamics simulation under pressure effects. It was observed that the structures with a constant average coordination of ∼ 5, indicating a metastable, intermediate form of the glass. It was also observed that, the pressure-induced changes in GeO 2 probably result from a decrease in size and eventual collapse of the ambient-pressure cage structures as the network was compacted.

Original languageEnglish (US)
Article number115502
Pages (from-to)115502-1-115502-4
JournalPhysical Review Letters
Issue number11
StatePublished - Sep 10 2004
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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