Asymptotic regimes for the electrical and thermal conductivities in dense plasmas

Faussurier, G.; Blancard, C.

doi:10.1063/1.4916775

Physics of Plasmas

2015

DOI: 10.1063/1.4916775

|View full text |Cite

Asymptotic regimes for the electrical and thermal conductivities in dense plasmas

G. Faussurier

C. Blancard

Abstract: We study the asymptotic regimes for the electrical and thermal conductivities in dense plasmas obtained by combining the Chester–Thellung–Kubo–Greenwood approach and the Kramers approximation [Faussurier et al., Phys. Plasmas 21, 092706 (2014)]. Non-degenerate and degenerate situations are considered. The Wiedemann–Franz law is obtained in the degenerate case.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2015

2019

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 5 publications

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Kubo–Greenwood approach to conductivity in dense plasmas with average atom models

Starrett

2016

High Energy Density Physics

View full text Add to dashboard Cite

A new formulation of the Kubo-Greenwood conductivity for average atom models is given. The new formulation improves upon previous by explicitly including the ionic-structure factor. Calculations based on this new expression lead to much improved agreement with ab initio results for DC conductivity of warm dense hydrogen and beryllium, and for thermal conductivity of hydrogen. We also give and test a slightly modified Ziman-Evans formula for the resistivity that includes a non-free electron density of states, thus removing an ambiguity in the original Ziman-Evans formula. Again results based on this expression are in good agreement with ab initio simulations for warm dense beryllium and hydrogen. However, for both these expressions, calculations of the electrical conductivity of warm dense aluminum lead to poor agreement at low temperatures compared to ab initio simulations.

show abstract

Kubo–Greenwood approach to conductivity in dense plasmas with average atom models

Starrett

2016

High Energy Density Physics

View full text Add to dashboard Cite

show abstract

Electronic transport coefficients in plasmas using an effective energy-dependent electron-ion collision-frequency

et al. 2017

View full text Add to dashboard Cite

We present a model to calculate the electrical and thermal electronic conductivities in plasmas using the Chester-Thellung-Kubo-Greenwood approach coupled with the Kramers approximation. The divergence in photon energy at low values is eliminated using a regularization scheme with an effective energy-dependent electron-ion collision-frequency. Doing so, we interpolate smoothly between the Drude-like and the Spitzer-like regularizations. The model still satisfies the well-known sum rule over the electrical conductivity. Such kind of approximation is also naturally extended to the average-atom model. A particular attention is paid to the Lorenz number. Its nondegenerate and degenerate limits are given and the transition towards the Drude-like limit is proved in the Kramers approximation.

show abstract

Electrical resistivity calculations in dense plasmas

Faussurier

Blancard

2019

Phys. Rev. E

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Asymptotic regimes for the electrical and thermal conductivities in dense plasmas

Cited by 5 publications

References 32 publications

Kubo–Greenwood approach to conductivity in dense plasmas with average atom models

Kubo–Greenwood approach to conductivity in dense plasmas with average atom models

Electronic transport coefficients in plasmas using an effective energy-dependent electron-ion collision-frequency

Electrical resistivity calculations in dense plasmas

Contact Info

Product

Resources

About