学术 | 一周讲座预告

The interior of planets, with high pressure and high temperature conditions, is a natural laboratory to “synthesize” many unexpected compounds, which are the basis to understand the structure and evolution of planets. In this talk, I will introduce some of our recent progress using crystal structure prediction [1] combined with first-principles calculations, for instance, the predictions of new possible compounds (helium-water, helium-ammonia, helium-methane, helium-silica, silica-water, etc) in the interior of giant planets or exoplanets, and their exotic new states under planetary high-pressure and high-temperature conditions (superionic state, plastic state, and their coexistence) [2-6]. These new compounds and their states may have some important implications for giant planets, including demixing, magnetic field, erosion of the rocky core, etc.