Abstract
The density dependence of the fluid structure and electrical resistivity of dense fluid hydrogen are studied along an isotherm of T= 104 K using a density-functional theory for an electron-proton binary mixture. A metal-nonmetal (M-NM) transition is estimated to occur around the dimensionless density value of rs =2.19. The electrical resistivity rapidly increases around this value with a decrease in the hydrogen density. Simultaneously, the density dependence of the fluid structure reveals a significant jump near the M-NM transition. The character of the effective interaction potential between protons is qualitatively changed after the M-NM transition. The pressure variation suggests that the M-NM transition is a discontinuous phase transition under coexistence conditions with regard to the phase equilibrium between the metal and the nonmetal phases.
Original language | English |
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Article number | 044712 |
Journal | Journal of Chemical Physics |
Volume | 128 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry