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Pressure-induced structural change of liquid silicon. | LitMetric

Pressure-induced structural change of liquid silicon.

Phys Rev Lett

Department of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan.

Published: June 2002

AI Article Synopsis

Article Abstract

High-pressure and high-temperature x-ray diffraction measurements indicate that liquid silicon contracts with increasing pressure without significant changes in the local structure up to 8 GPa and then transforms to a denser structure between 8 and 14 GPa. In spite of volume contraction, the nearest-neighbor interatomic distance expands by about 1.6% within this pressure interval, accompanied by an anomalous increase in the coordination number. These findings reveal that the drastic pressure-induced structural change can take place in three-dimensional-network liquids with rather isotropic bonding.

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Source
http://dx.doi.org/10.1103/PhysRevLett.88.255508DOI Listing

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