Metal-nonmetal transition in dense fluid hydrogen

Tomonari Sumi, Hideo Sekino

Research output: Contribution to journalArticle

2 Citations (Scopus)

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 languageEnglish
Article number044712
JournalJournal of Chemical Physics
Volume128
Issue number4
DOIs
Publication statusPublished - Feb 7 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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