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arXiv · 2006.00128

Reduction of the Coulomb logarithm due to electron-neutral collisions

Sergey Khrapak
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Abstract

The frictional force (stopping power) acting on a test electron moving through the ideal electron gas is calculated taking into account electron-neutral atom collisions using the linear plasma response formalism. This allows us to elucidate how the effective Coulomb logarithm is affected by electron-neutral collisions. In agreement with a recent investigation by Hagelaar, Donko, and Dyatko [Phys. Rev. Lett. {\bf 123}, 025004 (2019)] we observe that the effective Coulomb logarithm decreases considerably due to electron-neutral collisions and becomes inversely proportional to the collision frequency in the highly collisional limit.

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Sergey Khrapak. 2020-05-29. Reduction of the Coulomb logarithm due to electron-neutral collisions. https://doi.org/10.1103/physreve.101.061202

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