Shock Compressing Diamond to a Conducting Fluid

Bradley, D K; Eggert, J H; Hicks, D G; Celliers, P M; Moon, S J; Cauble, R C; Collins, G W

doi:10.1103/PhysRevLett.93.195506

Title: Shock Compressing Diamond to a Conducting Fluid

Journal Article · Thu Jul 29 00:00:00 EDT 2004 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.93.195506· OSTI ID:15014583

Bradley, D K; Eggert, J H; Hicks, D G; Celliers, P M; Moon, S J; Cauble, R C; Collins, G W

Laser generated shock reflectance data show that diamond undergoes a continuous transition from optically absorbing to reflecting between Hugoniot pressures 600<P{sub H}<1000 GPa. The data are consistent with diamond having a thermal population of carriers at P{sub H}{approx}600 GPa, undergoing band overlap metallization at P{sub H}{approx}1000 GPa and melting at 800<P{sub H}<1000 GPa. The results agree well with an equation of state model that predicts that elemental carbon remains solid throughout the interior of Neptune.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 15014583

Report Number(s):: UCRL-JRNL-205632; PRLTAO; TRN: US0800903

Journal Information:: Physical Review Letters, Vol. 93; ISSN 0031-9007

Country of Publication:: United States

Language:: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CARBON
DIAMONDS
LASERS
MELTING

Title: Shock Compressing Diamond to a Conducting Fluid

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