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

doi:10.1103/PhysRevLett.93.115502

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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Abstract

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 language	English (US)
Article number	115502
Pages (from-to)	115502-1-115502-4
Journal	Physical Review Letters
Volume	93
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.93.115502
State	Published - Sep 10 2004
Externally published	Yes

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General Physics and Astronomy

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10.1103/PhysRevLett.93.115502

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@article{fffbf48bc5374732978fa369bfa44417,

title = "Formation and structure of a dense octahedral glass",

abstract = "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.",

author = "M. Guthrie and Tulk, {C. A.} and Benmore, {C. J.} and J. Xu and Yarger, {J. L.} and Klug, {D. D.} and Tse, {J. S.} and Mao, {H. K.} and Hemley, {R. J.}",

note = "Funding Information: The SNS is managed by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 for the U.S. DOE, and the U.S. DOE Contract No. W31109ENG 38 was used for measurements at IPNS and APS, ANL. The work at Carnegie was supported by the NSF and DOE (CDAC). We also acknowledge the support of Y. Ren on BESSRC and the staff at Sectors 11 and 13. We also wish to thank J. Neuefeind, D. L. Price, S. Sampath, J. Siewenie and J. Burley.",

year = "2004",

month = sep,

day = "10",

doi = "10.1103/PhysRevLett.93.115502",

language = "English (US)",

volume = "93",

pages = "115502--1--115502--4",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

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TY - JOUR

T1 - Formation and structure of a dense octahedral glass

AU - Guthrie, M.

AU - Tulk, C. A.

AU - Benmore, C. J.

AU - Xu, J.

AU - Yarger, J. L.

AU - Klug, D. D.

AU - Tse, J. S.

AU - Mao, H. K.

AU - Hemley, R. J.

N1 - Funding Information: The SNS is managed by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 for the U.S. DOE, and the U.S. DOE Contract No. W31109ENG 38 was used for measurements at IPNS and APS, ANL. The work at Carnegie was supported by the NSF and DOE (CDAC). We also acknowledge the support of Y. Ren on BESSRC and the staff at Sectors 11 and 13. We also wish to thank J. Neuefeind, D. L. Price, S. Sampath, J. Siewenie and J. Burley.

PY - 2004/9/10

Y1 - 2004/9/10

N2 - 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.

AB - 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.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 115502

ER -

Formation and structure of a dense octahedral glass

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