Probing iron at Super-Earth core conditions

Journal Article · Sun Feb 15 00:00:00 EST 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4907244· OSTI ID:22408121

Brambrink, E.; Vinci, T. ^[1]; Benuzzi-Mounaix, A. ^[1]; Huser, G.; Brygoo, S. ^[2]; Morard, G.; Guyot, F. ^[3]; Resseguier, T. de ^[4]; Mazevet, S. ^[5]; Miyanishi, K. ^[6]; Ozaki, N.; Kodama, R. ^[6]; Henry, O.; Raffestin, D. ^[7]; Boehly, T. ^[8]; others, and

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1. LULI, UMR7605 CNRS, CEA, Ecole Polytechnique, Université Pierre et Marie Curie, Palaiseau (France)
2. CEA, DAM, DIF, F-91297 Arpajon (France)
3. Institut de Minéralogie, de Physique des Matériaux, et de Cosmochimie (IMPMC) Sorbonne Universités - UPMC Univ. Paris 06, UMR CNRS 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 Place Jussieu, F-75005 Paris (France)
4. Institut PPrime, CNRS, ENSMA, Université de Poitiers, Poitiers (France)
5. LUTH, UMR 8102 Observatoire de Paris, CNRS Université Paris Diderot, Meudon (France)
6. Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
7. CEA, DAM, CESTA, F-33114 Le Barp (France)
8. Laboratory for Laser Energetics, University of Rochester, 250 East River Rd., Rochester, New York 14623 (United States)

In this paper, we report on the quasi-isentropic compression of an iron sample using ramp shaped laser irradiation. This technique allows us to quasi-isentropically compress iron up to 700 GPa and 8500 K. To our knowledge, these data are the highest pressures reached on iron in off-Hugoniot conditions and the closest to the thermodynamic states thought to exist in Earth-like planetary cores. The experiment was performed on the Ligne d'Intégration laser facility at CESTA, Bordeaux, France.

• OSTI ID: 22408121
• Journal Information: Physics of Plasmas, Vol. 22, Issue 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPRESSION
EARTH CORE
IRON
ISENTROPIC PROCESSES
LASER RADIATION
PRESSURE RANGE GIGA PA
PRESSURE RANGE MEGA PA 10-100