Observation of Electrical Conductivity of Isentropically Compressed Hydrogen at Megabar Pressures

Hawke, P.S.; Burgess, Tom; Duerre, D. E.; Huebel, J. G.; Keeler, R. N.; Klapper, Helmuth Sarmiento; Wallace, W.C.

doi:10.1103/physrevlett.41.994

Cited by 108 publications

(24 citation statements)

References 11 publications

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“…Soon after, the first measurements of electrical conductivity in isentropically compressed hydrogen in a magnetic-flux compression device appeared (Hawke et al, 1978) which reported a measured drop of electrical resistivity below 1.0 Ωcm at a density of 1.06 g/cm 3 and an estimated pressure of 200 GPa. Continuous progress in the experimental techniques provided better data for the first (singleshock) Hugoniot up to 20 GPa and the second (reflectedshock) Hugoniot (Nellis et al, 1983a,b) up to 76 GPa, see figure 11.…”

Section: The Equation Of State and Principal Hugoniot Of Hydrogenmentioning

confidence: 99%

The properties of hydrogen and helium under extreme conditions

McMahon¹,

Morales²,

Pierleoni³

et al. 2012

Rev. Mod. Phys.

484

415

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Hydrogen and helium are the most abundant elements in the universe and, in principle, are the simplest elements. Nonetheless, they display remarkable properties under pressure that have fascinated theoreticians and experimentalists for over a century. Recent advances in computational methods have made it possible to elucidate many of these properties. We review some of the computational methods that have been applied to dense hydrogen and helium in recent years, mainly those that perform a simulation directly from the physical picture of electrons and ions; primarily, those based on density functional theory and quantum Monte Carlo methods. We then discuss the predictions from such methods as applied to the phase diagram of hydrogen, including the solid and fluid phases, with particular focus on the crystal structures, the liquidliquid transition and comparison of the results with experimental shock-wave data. We then discuss predictions of ordered quantum states, including a possible low-temperature fluid and high-temperature superconductivity in the atomic state. We also briefly discuss pure helium, and then focus on hydrogen-helium mixtures, with particular focus on properties of relevance to planetary science.

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Section: The Equation Of State and Principal Hugoniot Of Hydrogenmentioning

confidence: 99%

The properties of hydrogen and helium under extreme conditions

McMahon¹,

Morales²,

Pierleoni³

et al. 2012

Rev. Mod. Phys.

484

415

View full text Add to dashboard Cite

show abstract

“…11 Pa) a metallic, electrically conductive hydrogen phase with a density of >1.000 kg/m 3 has been reported [13][14][15]. Some properties of solid p-H 2 at the triple point are presented in Table 5.…”

Section: General Physical Datamentioning

confidence: 97%

Hydrogen, 1. Properties and Occurence

Häussinger

Lohmüller

Watson

2011

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. History 2. Properties 2.1. Physical Properties 2.1.1. General Physical Data 2.1.2. Solubilities, Diffusion Properties and Evaporation Equilibria 2.2. Chemical Properties 2.3. Ignition and Detonation Performance 2.4. Isotopes 3. Occurence

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“…The similar quasi-isentropic compression of high-pressure plasmas was realized by high symmetry cylindrical compression of condensed noble gases and hydrogen [9]. To realize "soft" isentropic plasma compression, explosively driven magnetic flux compression generation was applied [12,13].…”

Section: Shock Waves For Nonideal Plasmamentioning

confidence: 99%

Intense Shock Waves and Nonideal Plasma Physics: Shock Compression Science Award Lecture

Фортов

2006

AIP Conference Proceedings

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Observation of Electrical Conductivity of Isentropically Compressed Hydrogen at Megabar Pressures

Cited by 108 publications

References 11 publications

The properties of hydrogen and helium under extreme conditions

The properties of hydrogen and helium under extreme conditions

Hydrogen, 1. Properties and Occurence

Intense Shock Waves and Nonideal Plasma Physics: Shock Compression Science Award Lecture

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