Crystal data for high-pressure phases of silicon
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.
- Publication:
-
Physical Review B
- Pub Date:
- October 1986
- DOI:
- 10.1103/PhysRevB.34.4679
- Bibcode:
- 1986PhRvB..34.4679H
- Keywords:
-
- 61.55.Dc;
- 64.30.+t;
- 64.70.Kb;
- 62.50.+p;
- Equations of state of specific substances;
- Solid-solid transitions;
- High-pressure and shock wave effects in solids and liquids