Laser-driven shock experiments on precompressed water: Implications for ``icy'' giant planets

Details Laser-driven shock experiments on precompressed water: Implications for ``icy'' giant planets Laser-driven shock experiments on precompressed water: Implications for ``icy'' giant planets

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jchph.125a4701l&link_type=abstract

Journal of Chemical Physics, Volume 125, Issue 1, pp. 014701-014701-7 (2006).

Physics

Chemical Physics

20

High-Pressure And Shock Wave Effects In Solids And Liquids, Optical Properties Of Bulk Materials And Thin Films

Scientific paper

Laser-driven shock compression of samples precompressed to 1 GPa produces high-pressure-temperature conditions inducing two significant changes in the optical properties of water: the onset of opacity followed by enhanced reflectivity in the initially transparent water. The onset of reflectivity at infrared wavelengths can be interpreted as a semiconductor<-->electronic conductor transition in water, and is found at pressures above ~130 GPa for single-shocked samples precompressed to 1 GPa. Our results indicate that conductivity in the deep interior of ``icy'' giant planets is greater than realized previously because of an additional contribution from electrons.

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