title: Laser-driven shock experiments on precompressed water: Implications for "icy" giant planets.
abstract: 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 approximately 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.
authors.affiliation: Department of Earth & Planetary Science, University of California-Berkeley, Berkeley, California 94720-4767, USA.
authors.forename: Kanani K M
authors.initials: KK
authors.lastname: Lee
authors.forename: L Robin
authors.initials: LR
authors.lastname: Benedetti
authors.forename: Raymond
authors.initials: R
authors.lastname: Jeanloz
authors.forename: Peter M
authors.initials: PM
authors.lastname: Celliers
authors.forename: Jon H
authors.initials: JH
authors.lastname: Eggert
authors.forename: Damien G
authors.initials: DG
authors.lastname: Hicks
authors.forename: Stephen J
authors.initials: SJ
authors.lastname: Moon
authors.forename: Andrew
authors.initials: A
authors.lastname: Mackinnon
authors.forename: Luis B
authors.initials: LB
authors.lastname: Da Silva
authors.forename: David K
authors.initials: DK
authors.lastname: Bradley
authors.forename: Walter
authors.initials: W
authors.lastname: Unites
authors.forename: Gilbert W
authors.initials: GW
authors.lastname: Collins
authors.forename: Emeric
authors.initials: E
authors.lastname: Henry
authors.forename: Michel
authors.initials: M
authors.lastname: Koenig
authors.forename: Alessandra
authors.initials: A
authors.lastname: Benuzzi-Mounaix
authors.forename: John
authors.initials: J
authors.lastname: Pasley
authors.forename: David
authors.initials: D
authors.lastname: Neely