Quasi-hydrostatic equation of state of silicon up to 1 megabar at ambient temperature

The isothermal equation of state of silicon has been determined by synchrotron x-ray diffraction experiments up to 105.2 GPa at room temperature using diamond anvil cells. A He-pressure medium was used to minimize the effect of uniaxial stress on the sample volume and ruby, gold and tungsten pressur...

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Bibliographic Details
Published in:Scientific reports Vol. 9; no. 1; pp. 15537 - 14
Main Authors: Anzellini, Simone, Wharmby, Michael T., Miozzi, Francesca, Kleppe, Annette, Daisenberger, Dominik, Wilhelm, Heribert
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 29.10.2019
Nature Publishing Group
Nature Portfolio
Subjects:
639/301
639/766
Ambient temperature
Experiments
Humanities and Social Sciences
multidisciplinary
Phase transitions
Pressure
Pressure distribution
Pressure gauges
Science
Science (multidisciplinary)
Silicon
Tungsten
X-ray diffraction
ISSN:2045-2322, 2045-2322
Online Access:Get full text
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Summary:The isothermal equation of state of silicon has been determined by synchrotron x-ray diffraction experiments up to 105.2 GPa at room temperature using diamond anvil cells. A He-pressure medium was used to minimize the effect of uniaxial stress on the sample volume and ruby, gold and tungsten pressure gauges were used. Seven different phases of silicon have been observed along the experimental conditions covered in the present study.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-51931-1