H4O and other hydrogen-oxygen compounds at giant-planet core pressures
Materials Science
2013-02-01 v1 Earth and Planetary Astrophysics
Abstract
Water and hydrogen at high pressure make up a substantial fraction of the interiors of giant planets. Using ab initio random structure search methods we investigate the ground-state crystal structures of water, hydrogen, and hydrogen-oxygen compounds. We find that, at pressures beyond 14 Mbar, excess hydrogen is incorporated into the ice phase to form a novel structure with H4O stoichiometry. We also predict two new ground state structures, P2_1/m and I4/mmm, for post-C2/m water ice.
Keywords
Cite
@article{arxiv.1209.3448,
title = {H4O and other hydrogen-oxygen compounds at giant-planet core pressures},
author = {Shuai Zhang and Hugh Wilson and Kevin Driver and Burkhard Militzer},
journal= {arXiv preprint arXiv:1209.3448},
year = {2013}
}