Critical Point and Mechanism of the Fluid-Fluid Phase Transition in Warm Dense Hydrogen

被引：14

作者：

Norman, G. E. ^{[1
]}

Saitov, I. M. ^{[1
]}

机构：

[1] Russian Acad Sci, Joint Inst High Temp, Ul Izhorskaya 13, Moscow 125412, Russia

来源：

DOKLADY PHYSICS | 2017年 / 62卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Density functional theory - Equations of state;

D O I：

10.1134/S1028335817060088

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The density functional theory is used to calculate the equation of state and the proton-proton pair correlation functions in the range of hydrogen temperatures and densities where the fluid-fluid phase transition is expected. The metastable states are considered. The critical temperature has been estimated to be similar to 4000 K. We propose a two-step mechanism: the partial ionization of molecules to produce H-2(+) ions at the phase transition followed by the formation of H-3(+) ions.

引用

页码：294 / 298

页数：5

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