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 |
|---|---|
| Article number | 044712 |
| Journal | The Journal of Chemical Physics |
| Volume | 128 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2008 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Metal-nonmetal transition in dense fluid hydrogen. / Sumi, Tomonari; Sekino, Hideo.
In: The Journal of Chemical Physics, Vol. 128, No. 4, 044712, 2008.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Metal-nonmetal transition in dense fluid hydrogen
AU - Sumi, Tomonari
AU - Sekino, Hideo
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=38849207895&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38849207895&partnerID=8YFLogxK
U2 - 10.1063/1.2824930
DO - 10.1063/1.2824930
M3 - Article
C2 - 18247986
AN - SCOPUS:38849207895
VL - 128
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 4
M1 - 044712
ER -