Microscopic investigation of laser shocked glassy GeO2 using time resolved XAS

GeO2 is a very important material for earth scientists as a chemical and structural analogue of SiO2, a major component of earth’s interior. Almost nothing is known about the crystallization, melting curve, metallization mechanism and the structure of the liquid phase under dynamic compression at a microscopic level. We propose here to investigate local structure of glassy GeO2 compressed by laser shock up to the Warm Dense Matter state by in-situ time resolved X-ray Absorption (XAS).