Crystal data for high-pressure phases of silicon
- 1 October 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (7) , 4679-4684
- https://doi.org/10.1103/physrevb.34.4679
Abstract
X-ray-diffraction data have been obtained on Si in a diamond anvil cell to pressures of ∼50 GPa. Crystallographic data are presented in phase I (cubic, diamond), II (tetragonal, β-Sn), V (simple hexagonal), VII (hexagonal close-packed), and the metastable phase III [body-centered-cubic (BC8)] and on the coexistence of the phases. Comparison is made between these data and the predictions of ab initio calculations for these structures and their equations of state.Keywords
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