The properties of hydrogen and helium under extreme conditions
Hydrogen and helium are the most abundant elements in the Universe. They are also, in
principle, the most simple. Nonetheless, they display remarkable properties under extreme …
principle, the most simple. Nonetheless, they display remarkable properties under extreme …
Understanding dense hydrogen at planetary conditions
Materials at high pressures and temperatures are of great interest for planetary science and
astrophysics, warm dense-matter physics and inertial confinement fusion research …
astrophysics, warm dense-matter physics and inertial confinement fusion research …
[HTML][HTML] Liquid–liquid transition and polyamorphism
H Tanaka - The Journal of Chemical Physics, 2020 - pubs.aip.org
Two or more liquid states may exist even for single-component substances, which is known
as liquid polymorphism, and the transition between them is called liquid–liquid transition …
as liquid polymorphism, and the transition between them is called liquid–liquid transition …
Evidence for a new phase of dense hydrogen above 325 gigapascals
P Dalladay-Simpson, RT Howie, E Gregoryanz - Nature, 2016 - nature.com
Almost 80 years ago it was predicted that, under sufficient compression, the H–H bond in
molecular hydrogen (H2) would break, forming a new, atomic, metallic, solid state of …
molecular hydrogen (H2) would break, forming a new, atomic, metallic, solid state of …
Direct observation of an abrupt insulator-to-metal transition in dense liquid deuterium
MD Knudson, MP Desjarlais, A Becker, RW Lemke… - Science, 2015 - science.org
Eighty years ago, it was proposed that solid hydrogen would become metallic at sufficiently
high density. Despite numerous investigations, this transition has not yet been …
high density. Despite numerous investigations, this transition has not yet been …
Conductive dense hydrogen
MI Eremets, IA Troyan - Nature materials, 2011 - nature.com
Molecular hydrogen is expected to exhibit metallic properties under megabar pressures.
This metal is predicted to be superconducting with a very high critical temperature, T c, of …
This metal is predicted to be superconducting with a very high critical temperature, T c, of …
Mixed molecular and atomic phase of dense hydrogen
We used Raman and visible transmission spectroscopy to investigate dense hydrogen
(deuterium) up to 315 (275) GPa at 300 K. At around 200 GPa, we observe the phase …
(deuterium) up to 315 (275) GPa at 300 K. At around 200 GPa, we observe the phase …
Ab initio simulations for material properties along the Jupiter adiabat
M French, A Becker, W Lorenzen… - The Astrophysical …, 2012 - iopscience.iop.org
We determine basic thermodynamic and transport properties of hydrogen–helium–water
mixtures for the extreme conditions along Jupiter's adiabat via ab initio simulations, which …
mixtures for the extreme conditions along Jupiter's adiabat via ab initio simulations, which …
Insulator-metal transition in dense fluid deuterium
Dense fluid metallic hydrogen occupies the interiors of Jupiter, Saturn, and many extrasolar
planets, where pressures reach millions of atmospheres. Planetary structure models must …
planets, where pressures reach millions of atmospheres. Planetary structure models must …
Evidence for a first-order liquid-liquid transition in high-pressure hydrogen from ab initio simulations
MA Morales, C Pierleoni… - Proceedings of the …, 2010 - National Acad Sciences
Using quantum simulation techniques based on either density functional theory or quantum
Monte Carlo, we find clear evidence of a first-order transition in liquid hydrogen, between a …
Monte Carlo, we find clear evidence of a first-order transition in liquid hydrogen, between a …