Related Experiment Video
Updated: Apr 3, 2026

Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 15, 2013
A novel phase of beryllium fluoride at high pressure
Maksim S Rakitin1, Artem R Oganov, Haiyang Niu
1Department of Geosciences, State University of New York, Stony Brook, NY 11794, USA. maksim.rakitin@stonybrook.edu artem.oganov@stonybrook.edu.
Abstract:
A previously unknown thermodynamically stable high-pressure phase of BeF2 has been predicted using the evolutionary algorithm USPEX. This phase occurs in the pressure range 18-27 GPa. Its structure has C2/c space group symmetry and contains 18 atoms in the primitive unit cell. Given the analogy between BeF2 and SiO2, silica phases have been investigated as well, but the new phase has not been observed to be thermodynamically stable for this system. However, it is found to be metastable and to have comparable energy to the known metastable phases of SiO2, suggesting a possibility of its synthesis.
More Related Videos
08:42High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
Published on: October 10, 2014
07:26Synthesis and Microdiffraction at Extreme Pressures and Temperatures
Published on: October 7, 2013
Related Concept Videos
Phase Diagrams
Hybridization of Atomic Orbitals I
Phase Diagram