Experimental methods for warm dense matter research

K Falk - High Power Laser Science and Engineering, 2018 - cambridge.org
The study of structure, thermodynamic state, equation of state (EOS) and transport properties
of warm dense matter (WDM) has become one of the key aspects of laboratory astrophysics …

Polymorphic phase transitions: Macroscopic theory and molecular simulation

J Anwar, D Zahn - Advanced Drug Delivery Reviews, 2017 - Elsevier
Transformations in the solid state are of considerable interest, both for fundamental reasons
and because they underpin important technological applications. The interest spans a wide …

Phase transformations and metallization of magnesium oxide at high pressure and temperature

RS McWilliams, DK Spaulding, JH Eggert, PM Celliers… - Science, 2012 - science.org
Magnesium oxide (MgO) is representative of the rocky materials comprising the mantles of
terrestrial planets, such that its properties at high temperatures and pressures reflect the …

Experimental evidence for a phase transition in magnesium oxide at exoplanet pressures

F Coppari, RF Smith, JH Eggert, J Wang, JR Rygg… - Nature …, 2013 - nature.com
Magnesium oxide is an important component of the Earth's mantle and has been extensively
studied at pressures and temperatures relevant to Earth. However, much less is known …

Miscibility of rock and ice in the interiors of water worlds

T Kovačević, F González-Cataldo, ST Stewart… - Scientific reports, 2022 - nature.com
Abstract Super-Earths and sub-Neptunes are the most common planet types in our galaxy. A
subset of these planets is predicted to be water worlds, bodies that are rich in water and …

Prediction of a hexagonal SiO2 phase affecting stabilities of MgSiO3 and CaSiO3 at multimegabar pressures

T Tsuchiya, J Tsuchiya - Proceedings of the National …, 2011 - National Acad Sciences
Ultrahigh-pressure phase relationship of SiO2 silica in multimegabar pressure condition is
still quite unclear. Here, we report a theoretical prediction on a previously uncharacterized …

Machine-Learning Accelerated First-Principles Accurate Modeling of the Solid–Liquid Phase Transition in MgO under Mantle Conditions

P Wisesa, CM Andolina, WA Saidi - The Journal of Physical …, 2023 - ACS Publications
While accurate measurements of MgO under extreme high-pressure conditions are needed
to understand and model planetary behavior, these studies are challenging from both …

Electrical conductivity and magnetic dynamos in magma oceans of Super-Earths

F Soubiran, B Militzer - Nature communications, 2018 - nature.com
Super-Earths are extremely common among the numerous exoplanets that have been
discovered. The high pressures and temperatures in their interiors are likely to lead to long …

Rocky core solubility in Jupiter and giant exoplanets

HF Wilson, B Militzer - Physical Review Letters, 2012 - APS
Gas giants are believed to form by the accretion of hydrogen-helium gas around an initial
protocore of rock and ice. The question of whether the rocky parts of the core dissolve into …

Novel stable compounds in the Mg–O system under high pressure

Q Zhu, AR Oganov, AO Lyakhov - Physical Chemistry Chemical …, 2013 - pubs.rsc.org
Using ab initio evolutionary simulations, we explore the entire range of possible
stoichiometries for the Mg–O system at pressures of up to 850 GPa. In addition to MgO, our …