Electrical and thermal conductivities in dense plasmas

Journal Article · Mon Sep 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4895509· OSTI ID:22304440

Blancard, C.; Combis, P.; Videau, L. ^[1]

---

1. CEA, DAM, DIF, F-91297 Arpajon (France)

Expressions for the electrical and thermal conductivities in dense plasmas are derived combining the Chester-Thellung-Kubo-Greenwood approach and the Kramers approximation. The infrared divergence is removed assuming a Drude-like behaviour. An analytical expression is obtained for the Lorenz number that interpolates between the cold solid-state and the hot plasma phases. An expression for the electrical resistivity is proposed using the Ziman-Evans formula, from which the thermal conductivity can be deduced using the analytical expression for the Lorenz number. The present method can be used to estimate electrical and thermal conductivities of mixtures. Comparisons with experiment and quantum molecular dynamics simulations are done.

• OSTI ID: 22304440
• Journal Information: Physics of Plasmas, Vol. 21, Issue 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPARATIVE EVALUATIONS
ELECTRIC CONDUCTIVITY
HOT PLASMA
INFRARED DIVERGENCES
MOLECULAR DYNAMICS METHOD
SIMULATION
SOLIDS
THERMAL CONDUCTIVITY