Search Results - "Jeanloz, Raymond"
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Insulator-metal transition in dense fluid deuterium
Published in Science (American Association for the Advancement of Science) (17-08-2018)“…Dense fluid metallic hydrogen occupies the interiors of Jupiter, Saturn, and many extrasolar planets, where pressures reach millions of atmospheres. Planetary…”
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Hydrodynamic instability at impact interfaces and planetary implications
Published in Nature communications (08-04-2021)“…Impact-induced mixing between bolide and target is fundamental to the geochemical evolution of a growing planet, yet aside from local mixing due to jetting –…”
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3
Phase Transformations and Metallization of Magnesium Oxide at High Pressure and Temperature
Published in Science (American Association for the Advancement of Science) (07-12-2012)“…Magnesium oxide (MgO) is representative of the rocky materials comprising the mantles of terrestrial planets, such that its properties at high temperatures and…”
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Seismic anisotropy in the Earth's innermost inner core: Testing structural models against mineral physics predictions
Published in Geophysical research letters (16-01-2016)“…Using an updated data set of ballistic PKIKP travel time data at antipodal distances, we test different models of anisotropy in the Earth's innermost inner…”
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Local structure of molten AuGa2 under pressure: Evidence for coordination change and planetary implications
Published in Scientific reports (01-05-2018)“…In situ x-ray diffraction measurements and inverse Monte Carlo simulations of pair distribution functions were used to characterize the local structure of…”
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Fluid helium at conditions of giant planetary interiors
Published in Proceedings of the National Academy of Sciences - PNAS (12-08-2008)“…As the second most-abundant chemical element in the universe, helium makes up a large fraction of giant gaseous planets, including Jupiter, Saturn, and most…”
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Experimental evidence for superionic water ice using shock compression
Published in Nature physics (05-02-2018)Get full text
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8
Stability of iron crystal structures at 0.3–1.5 TPa
Published in Earth and planetary science letters (01-01-2015)“…Ab initio molecular dynamics simulations carried out for tetragonal and orthorhombic distortions of iron closely follow the results of static-lattice…”
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Achieving High-Density States through Shock-Wave Loading of Precompressed Samples
Published in Proceedings of the National Academy of Sciences - PNAS (29-05-2007)“…Materials can be experimentally characterized to terapascal pressures by sending a laser-induced shock wave through a sample that is precompressed inside a…”
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Pressure-induced structural transition of CdxZn1−xO alloys
Published in Applied physics letters (11-04-2016)“…CdxZn1−xO alloys, as a transparent conducting oxide, have recently attracted much attention for potential optoelectronic applications. In this letter, we…”
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11
Calibrating experiments at atom-crushing pressures
Published in Science (American Association for the Advancement of Science) (04-06-2021)“…Shockless compression of platinum and gold provides pressure standards to >1 terapascal Experimentalists can now generate terapascal pressures in the…”
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12
Sediments at the Top of Earth's Core
Published in Science (American Association for the Advancement of Science) (17-11-2000)“…Unusual physical properties at the core-mantle boundary have been inferred from seismic and geodetic observations in recent years. We show how both types of…”
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13
Tetragonal structure of CaSiO3 perovskite above 20 GPa
Published in Geophysical research letters (01-12-2002)“…High‐resolution synchrotron X‐ray diffraction measurements were performed at 20–46 GPa on CaSiO3 perovskite (Ca‐pv) synthesized in a laser heated diamond cell…”
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14
High-pressure alloying of potassium and iron: Radioactivity in the Earth's core?
Published in Geophysical research letters (01-12-2003)“…High‐resolution x‐ray diffraction provides evidence that potassium (K) alloys with iron (Fe) when the two pure elements are heated together at pressures above…”
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15
High-pressure transformation of Al2O3
Published in Science (American Association for the Advancement of Science) (07-11-1997)“…X-ray diffraction measurements indicate that ruby ([Cr.sup.3+] doped [Alpha]-[Al.sub.2O.sub.3]) transforms to the [Rh.sub.2O.sub.3] (II) Structure when heated…”
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16
Introduction
Published in Annual review of earth and planetary sciences (23-07-2024)Get full text
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Introduction
Published in Annual review of earth and planetary sciences (31-05-2023)Get full text
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18
Red-green luminescence in indium gallium nitride alloys investigated by high pressure optical spectroscopy
Published in Applied physics letters (16-04-2012)Get full text
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19
Introduction
Published in Annual review of earth and planetary sciences (01-01-2023)Get full text
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20
Earth's Core-Mantle Boundary: Results of Experiments at High Pressures and Temperatures
Published in Science (American Association for the Advancement of Science) (22-03-1991)“…Laboratory experiments document that liquid iron reacts chemically with silicates at high pressures (≥2.4 × 10$^{10}$ Pascals) and temperatures. In particular,…”
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