Abstract:

In 1935, Wigner and Huntington predicted that molecular hydrogen would undergo a transition from a proton-paired insulator to a monatomic metal under sufficiently strong compression, but up to now there are no direct and convincing experimental observations of metallic hydrogen in solid form. Remarkable progress has been taken in the study of other molecular solids at high density, especially for diatomic molecular crystals and hydrogen-rich systems, which includes the observation of pressure induced metallic transition, molecular dissociation, and atomic phase. However there are still some puzzles unresolved. Here I present our recent researches on the behavior of some typical molecular solids under high pressure.
 
 
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