2006/04/07 by Jean Clérouin, Yann Laudernet, Vanina Recoules +3
Chemistry · Earth and Planetary Sciences · #Geological and Geochemical Analysis #High-pressure geophysics and materials #Inorganic Fluorides and Related Compounds
paper · doi:10.1088/0305-4470/39/17/s12
openalex publication_date 2006/04/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
The equation of state and optical properties of shocked compressed silica and LiF are investigated using quantum molecular dynamics in a wide range of pressures and temperatures along the principal Hugoniot. For silica, the increase in reflectivity occurs at about 100 Gpa and saturates around 40%. For LiF, a pressure of 600 GPa is needed to observe a significant reflectivity, but no saturation is observed. Our results are in close agreement with the experimental measurements (Hicks D G, Celliers P M, Collins G W, Eggert J H and Moon S J 2003 Phys. Rev. Lett. 91 035502) and a simple fit of the optical index of LiF versus compression is provided.