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Metastable states of fluid–fluid phase transition in warm dense hydrogen

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, , Citation R A Sartan et al 2019 J. Phys.: Conf. Ser. 1147 012003 DOI 10.1088/1742-6596/1147/1/012003

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r.sartan@gmail.com

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1 National Research University Higher School of Economics, Myasnitskaya 20, Moscow 101000, Russia

2 Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow 125412, Russia

3 Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141700, Russia

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1742-6596/1147/1/012003

Abstract

The warm dense hydrogen is studied by means of the ab initio molecular dynamics simulation in the region of fluid–fluid phase transition. The metastable states of two isotherm of 700 and 1000 K are calculated. The metastable ranges by pressure are 470 and 320 kbar respectively. The existence of metastability is a strong criterion that the transition is a first order phase transition.

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10.1088/1742-6596/1147/1/012003