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Dielectric response function and stopping power of a two-dimensional electron gas
Phys. Rev. E 48, 2994 – Published 1 October, 1993
DOI: https://doi.org/10.1103/PhysRevE.48.2994
Abstract
The dielectric response function of an electron gas confined in two dimensions is calculated in the random-phase approximation at any degeneracy. We then focus our attention on the stopping power of such an electron gas. The results exhibit important discrepancies with respect to the three-dimensional case. The leading term of the asymptotic expansion in the high-velocity V range is independent of the electron mass and decreases as 1/V.
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