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

2017 ◽  
Vol 24 (10) ◽  
pp. 102701
Author(s):  
G. Faussurier ◽  
C. Blancard ◽  
P. Combis ◽  
A. Decoster ◽  
L. Videau
Keyword(s):  
Electronic Transport ◽  
Collision Frequency ◽  
Transport Coefficients ◽  
Effective Energy ◽  
Energy Dependent ◽  
Ion Collision

Effects of temperature and electron collision frequency on the elastic electron–ion collisions in a collisional plasma

2013 ◽  
Vol 79 (5) ◽  
pp. 553-558 ◽  
Author(s):  
YOUNG-DAE JUNG ◽  
WOO-PYO HONG
Keyword(s):  
Phase Shift ◽  
Temperature Effect ◽  
Cross Section ◽  
Collision Frequency ◽  
Electron Collision ◽  
Elastic Electron ◽  
Dynamic Temperature ◽  
Electron Collision Frequency ◽  
Dynamic Screening ◽  
Ion Collision

AbstractThe effects of dynamic temperature and electron–electron collisions on the elastic electron–ion collision are investigated in a collisional plasma. The second-order eikonal analysis and the velocity-dependent screening length are employed to derive the eikonal phase shift and eikonal cross section as functions of collision energy, electron collision frequency, Debye length, impact parameter, and thermal energy. It is interesting to find out that the electron–electron collision effect would be vanished; however, the dynamic temperature effect is included in the first-order approximation. We have found that the dynamic temperature effect strongly enhances the eikonal phase shift as well as the eikonal cross section for electron–ion collision since the dynamic screening increases the effective shielding distance. In addition, the detailed characteristic behavior of the dynamic screening function is also discussed.

scholarly journals The stimulated emission of Bremsstrahlung in a fully ionized plasma

1988 ◽  
Vol 6 (3) ◽  
pp. 513-523 ◽  
Author(s):  
W. B. Thompson
Keyword(s):  
Electron Distribution ◽  
Collision Frequency ◽  
Stimulated Emission ◽  
Radiation Frequency ◽  
Numerical Factor ◽  
Gain Rate ◽  
Ion Collision

The process of induced bremsstrahlung is studied and it is found that anisotropy in the electron distribution can lead to the amplification of radiation. The gain rate is ,Λ where ν is the electron-ion collision frequency, ωp and ω the plasma and radiation frequency, and Λ a numerical factor which is positive only for anisotropic distributions.

Computation of electrical conductivity and thermoelectric power in strong-scattering disordered metals

1984 ◽  
Vol 62 (7) ◽  
pp. 692-700 ◽  
Author(s):  
L. E. Ballentine ◽  
J. E. Hammerberg
Keyword(s):  
Thermoelectric Power ◽  
Electronic Transport ◽  
Numerical Evaluation ◽  
Transport Coefficients ◽  
Finite Size ◽  
Kubo Formula ◽  
Shape Effects ◽  
Computational Aspects ◽  
Disordered Metals ◽  
Strong Scattering

We describe a method of computing electronic transport coefficients in liquid and amorphous metals by numerical evaluation of the Kubo formula for a cluster of a few hundred atoms. s and d states are treated equally, and no assumptions need be made about the number of carriers per atom. Finite size and shape effects, and other computational aspects, are examined. The method is applied to liquid La. The calculated (measured) values are 151 μΩ∙cm (135 μΩ∙cm) for the resistivity, and −7 ± 1 μV/K (−7.5 μV/K) for the thermoelectric power. The relative contributions of s and d states to electronic transport are computed, and we find the d states to be dominant.

scholarly journals Phenomenological study of the electronic transport coefficients of graphene

2007 ◽  
Vol 76 (7) ◽  
Author(s):  
N. M. R. Peres ◽  
J. M. B. Lopes dos Santos ◽  
T. Stauber
Keyword(s):  
Electronic Transport ◽  
Phenomenological Study ◽  
Transport Coefficients

scholarly journals Quantum Non-Equilibrium Dynamics Prediction of Electronic Transport Coefficients in Non-Linear Regimes

2020 ◽  
Author(s):  
Alfredo Correa ◽  
Xavier Andrade ◽  
Alicia Welden ◽  
Jane Herriman ◽  
Rafi Ullah
Keyword(s):  
Electronic Transport ◽  
Transport Coefficients ◽  
Equilibrium Dynamics ◽  
Non Linear ◽  
Non Equilibrium
Sign in / Sign up

Export Citation Format

Share Document